How to Create Motion Prompts

Properly setting your motion prompts brings your Avatar IV creations to life by giving you full control over body movement, gestures, and expression. Doing this allows you to describe exactly how your avatar should move or react within a scene, helping you create natural, dynamic results every time.

Getting Started

When using Avatar IV, you can direct your avatar’s motion using short text prompts.

In the AI Studio, click your avatar, select the person icon in the upper-right corner, and choose your avatar engine.

Custom Motion lets you control how your avatar acts- facial expression, body posture, and hand gestures. Type what you want in plain English. The system reads every word and applies it across your video.

What you can control

😀 Facial expression — calm, enthusiastic, serious, warm, confident, sincere, sad, intense
🙌 Hand gestures — wave, point, thumbs up, hand on heart, peace sign, crossed arms, OK sign, namaste, open arms, fist pump, salute, clapping, shrug
🧍 Body posture — lean in, grounded, warm and open, composed
👁️ Gaze — look at camera, look away, look off-camera
🤐 Stillness — no hand gestures, hands still, barely move, less expressive

What you can NOT control here

❌ Camera motion (zoom, pan, dolly)
❌ Location or scene (walk to the kitchen, go outside)
❌ Props or actions (drink coffee, smoke a cigarette, pick up a phone)
❌ Standing up or walking around
❌ Background or lighting changes

This tool is for face + body + gestures, not scene direction. If you need camera moves or scene changes, those are handled elsewhere in the editor.

Writing Motion Prompts with Avatar IV

Each Motion Prompt describes what the avatar should do and how it should do it.

Use the following simple structure:
[Body part] + [Action] + [Emotion or intensity]

Example:

Right arm raises to wave enthusiastically.

Keep your descriptions short and clear. Each line should represent a single movement idea. Avoid combining multiple actions in one sentence — separate them for better results.

Best Practices for Writing Motion Prompts

Be specific. Focus on clear, visible actions: point, nod, turn, wave, smile.
Avoid overloading. Limit each prompt to one gesture or emotion at a time.
Keep timing natural. Avatar IV automatically handles pacing — there’s no need to specify seconds.
Control facial expressions. You can include emotions directly in the prompt (for example, smiles gently, looks surprised).
Experiment. Small wording changes can produce big differences in performance.

Motion Prompt Structure Examples

Type	Example Prompt
Simple Gesture	Avatar waves with a friendly smile.
Emotional Expression	Avatar crosses arms, looking thoughtful.
Multi-Part Sequence	Avatar nods confidently, then points forward.