DET Interactive Speaking: Why You Can't Fake a Conversation (and How to Stop Freezing)

Meraya was stuck at 105 on the DET. Her English was solid. Her pronunciation was clear. But every time she hit the speaking section, she'd start strong and then fall apart around 30 seconds in.

"I run out of things to say," she told us.

But when we recorded her practice sessions, she wasn't running out of ideas. She was running out of working memory. And the problem started before she even opened her mouth.

Meraya was trying to do three things at once: listen to the question, plan her answer, and speak. Her brain couldn't handle it. So it shut down.

We changed one thing. Her score jumped. Her mom said we were the best teacher she'd ever had.

Here's what we taught her — and why it matters even more now that DET has changed.

What Changed in July 2025

In July 2025, DET replaced "Listen Then Speak" with a new task called Interactive Speaking.

Here's how it works:

1. An AI character (Bea or Oscar) appears on screen and asks you a question
2. You click "Record" and have 35 seconds to answer
3. Based on what you said, they ask a follow-up question
4. This repeats for 6 questions total (two sets of three)

The questions build on your previous answers. If you say you like cooking, the next question might be "What kind of food do you like to cook?" If you mention Italian food, they might ask "Have you ever taken a cooking class?"

This is not a monologue. It's a simulated conversation.

According to Duolingo's official announcement, Interactive Speaking was designed to test "real-world interaction skills, like topic development, contextual appropriateness, and spoken response organization."

In other words: can you actually have a conversation?

Why Students Freeze

The problem isn't English ability. It's cognitive overload.

When you try to listen to a question, plan your answer, and speak — all at the same time — your working memory gets overwhelmed. Research in cognitive load theory shows that working memory can only handle a few things at once. When you exceed that limit, performance collapses.

Here's what happens to most students during Interactive Speaking:

1. The character asks a question
2. The student tries to remember every word
3. While remembering, they start planning what to say
4. While planning, they start speaking
5. By sentence two, they've forgotten the question
6. By sentence three, they freeze

They're not bad at English. They're trying to do too much at once.

The Shift: Stop Listening to Everything

Meraya's breakthrough came when we taught her to stop trying to catch every word.

Instead, she learned to listen for just one thing: the question word.

Every question has a question word that tells you what kind of answer is expected:

• Who → a person
• What → a thing, action, or description
• Where → a place
• When → a time
• Why → a reason
• How → a process or method

If you catch the question word and the topic, you have enough to answer. You don't need to remember the exact phrasing. You don't need to process every word.

This frees up working memory. Now your brain has space to actually form a response.

Why Simple Answers Work Better

Here's something most students don't realize: in Interactive Speaking, your answer shapes the next question.

If you ramble and say five different things, the follow-up question might pick up on something you barely mentioned. Now you're stuck talking about a topic you didn't mean to introduce.

If you answer simply and clearly, the follow-up stays in your comfort zone.

Example:

Question: "What do you like to do on weekends?"

Rambling answer: "Well, I like many things, sometimes I go to the park or maybe watch movies, and also I enjoy cooking when I have time, and my friends sometimes come over, and we play games or just talk..."

Simple answer: "I usually cook on weekends. I find it relaxing after a busy week."

The simple answer gives the AI a clear topic to follow up on. The rambling answer could go anywhere — and you won't be ready for it.

This Is Why DET Is Different from IELTS

If you've prepared for IELTS, you might be used to a different approach.

In IELTS Speaking Part 2, you get one minute to prepare. You can write notes. You can organize your thoughts. You can mentally rehearse in your first language, then deliver in English.

DET Interactive Speaking gives you nothing. You hear the question once. You respond immediately. There's no preparation time. No notes. No mental rehearsal.

We wrote about this distinction in detail in our post on DET vs IELTS: IELTS tests prepared production. DET tests on-demand production.

Interactive Speaking is the purest expression of on-demand English. You either have it in your system, or you don't.

How to Practice

The goal is to make the question-word technique automatic. Here's how:

Daily Drill: Question Word Catch

1. Have someone ask you random questions (or use a question generator)
2. As soon as you hear the question, say the question word out loud: "What" or "Why" or "How"
3. Then answer in one sentence
4. Repeat for 5-10 questions

This trains your brain to identify the question type before you start planning your answer.

Conversation Practice

1. Find a conversation partner (or use an AI chatbot)
2. Have them ask follow-up questions based on your answers
3. Practice keeping your answers simple enough that you can predict where the follow-up will go

The goal isn't to give perfect answers. It's to stay in control of the conversation flow.

What NOT to Do

• Don't memorize templates. The questions adapt to you. Templates fall apart.
• Don't try to sound impressive. Complex vocabulary used poorly scores lower than simple vocabulary used correctly.
• Don't speak for the full 35 seconds just because you can. A clear 20-second answer beats a rambling 35-second one.

What Meraya Learned

After we taught Meraya the question-word technique, she stopped trying to process everything. She stopped planning while speaking. She stopped freezing.

Her score jumped. Not because her English got better overnight — it didn't. But because she stopped overloading her brain.

She learned to sequence instead of multitask: listen first, then process, then speak. One thing at a time.

That's the shift. It sounds simple. For most students, it changes everything.

Keep Reading

If you found this helpful, you might also want to read:

• Why You Freeze on the DET Speaking Test (and How to Fix It)
• Read Then Speak: How to Use Your Prep Time
• DET vs IELTS: Which Test Actually Predicts Success?
• Why the Minimum DET Score Isn't Enough