Veo 3 testimonial-style ad with synchronised dialogue

I want a Veo 3 clip that has a person delivering one short line of dialogue with their mouth in sync, no static voiceover.

In Gemini, switch to video generation (Veo 3).

The character (not a real person, fictional): {{character}}
The single line they deliver (12 words max): {{line}}
Delivery (warm / dry / quiet / wry, AU accent): {{delivery}}
Setting: {{setting}}
Camera (medium / close / off-axis): {{camera}}
Wardrobe: {{wardrobe}}
Native ambient audio under the dialogue: {{ambient}}
Aspect and platform: {{aspect_platform}}
What to AVOID: {{avoid}}

Generate one 8-second clip with:
- Mouth-synced delivery of {{line}}, AU accent, in the {{delivery}} register.
- Direct address to camera but not theatrical.
- Soft ambient audio underneath the dialogue, no music.
- A pause at the end (no abrupt cut) so the line lands.
- The character should look real, not uncanny: natural eyes, natural blink rate, no plastic skin.

After the clip, suggest two alternate delivery directions (e.g. "try it with a half-smile" / "try it more deadpan") I could re-run.