A realistic, natural-looking phone video of two teenage best friends sitting together in a casual indoor setting.
Girl 1 is laughing at Girl 2 in a playful way. Girl 2 smiles and laughs along with her, looking genuinely happy while facing Girl 1. Then, after a few seconds, Girl 2 slowly turns her head to the left or right, away from Girl 1. The moment Girl 1 cannot see her face anymore, Girl 2's smile disappears and her expression becomes quietly sad and hurt. Girl 1 doesn't notice and continues laughing.
The emotional change should be subtle and realistic, not dramatic. No crying, no exaggerated acting. Make it look like an authentic candid phone recording, with natural facial expressions, normal movements, realistic lighting, slight handheld camera movement, and no cinematic effects.
IMPORTANT: The video must show the actual two girls and their interaction. No text, captions, quotes, voice-over, slideshow, still images, or montage. Do not make it look obviously AI-generated.