The Car Selfie prompt creates that shot with natural light coming through the window and a spontaneous mood, one of the most recognisable UGC formats on social media. It works in NanoBanana, in Gemini and in ChatGPT.
1) Send your photo (and the product or outfit one, if you like) with the JSON prompt in the same message.
2) Keep "preserve_identity" so the face comes out faithful to yours.
3) Adjust the expression in "person" to relaxed and natural, with the seatbelt on.
4) Set the light in "lighting": bright window daylight with the natural flare.
5) Generate and redo the crop in "framing" (chest up) until it looks convincing.
Tip: leaving the light "imperfect" avoids the too-perfect look and keeps the air of a real selfie.
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