First 0.3s impact · Pattern interrupt · Curiosity gap · Scroll-stop power · Emotional trigger · Text hook clarity · Audio hook sync · Visual hook contrast · Opening word choice · Question technique · Tension creation · Surprise element · Contrast shift · Movement trigger · Color burst · Sound design opening · Pacing of reveal · Information gap · Promise clarity · Bait authenticity · Re-watch hook · Mid-hook retention · End-hook loop · Hook-to-content coherence
FOMO trigger · Social proof density · Loss aversion · Identity resonance · Dopamine loop structure · Controversy quotient · Relatability index · Emotional valence · Mirror neuron activation · Tribal belonging · Status signaling · Curiosity sustain · Parasocial pull · Nostalgia trigger · Aspiration gap · Empathy bridge · Cognitive dissonance · Reward anticipation · Narrative transportation · Self-reference effect · Scarcity perception · Authority framing · Reciprocity cue · Emotional arc completion
Watch time prediction · Loop probability · Share trigger density · Comment bait strength · Save worthiness · Sound trend alignment · Format compliance · Hashtag optimization · Caption SEO · Engagement velocity · First-hour momentum · Explore probability · Content category fit · Duet/stitch potential · Cross-platform fit · Thumbnail click rate · Completion rate · Replay trigger count · Penalty risk · Shadowban check · Posting frequency · Audience overlap · Trend timing · Recommendation engine fit
Color psychology · Composition geometry · Rule of thirds · Golden ratio · Eye-flow path · Symmetry balance · Negative space · Focal point clarity · Grid alignment · Depth layering · Contrast ratio · Motion dynamics · Text readability · Font psychology · Thumbnail appeal · Color temperature · Saturation strategy · Visual hierarchy · Brand consistency · Transition quality · Frame rate · Aspect ratio · Visual noise · Icon clarity
Micro-expression authenticity · Eye contact consistency · Duchenne smile detection · Eyebrow expressiveness · Lip sync accuracy · Facial symmetry · Emotional congruence · Gaze direction purpose · Blink rate naturalness · Jaw tension · Forehead movement · Cheek engagement · Nose scrunch timing · Eye widening impact · Pupil engagement · Facial lighting · Makeup/filter balance · Skin texture · Camera proximity · Head tilt angle · Chin confidence · Temple pulse visibility · Micro-movement rhythm · Expression transition speed
Spine alignment energy · Shoulder openness · Hand gesture purposefulness · Arm position confidence · Chest projection · Leaning direction intent · Stillness vs fidgeting · Walking pace energy · Sitting posture · Head position dominance · Weight distribution · Gesture-to-speech sync · Personal space usage · Physical presence scale · Movement fluidity · Energy projection · Nervous habit detection · Power pose frequency · Gesticulation range · Body symmetry · Leg positioning · Torso rotation · Breathing visibility · Kinetic energy score
Lighting quality · Natural vs artificial · Shadow intentionality · Background relevance · Environmental storytelling · Color temperature mood · Depth of field · Background blur · Location aspirational value · Clutter distraction · Sound clarity · Ambient noise level · Echo/reverb quality · Background music fit · Scene transition · Weather/time mood · Interior design appeal · Outdoor scenery · Props relevance · Space utilization · Ceiling/wall aesthetics · Floor/surface quality · Production value · Location authenticity
Caption hook strength · Story arc structure · Readability grade · Emoji strategy · CTA clarity · Hashtag relevance · Keyword density · Length optimization · First line power · Line break rhythm · Tone consistency · Voice personality · Urgency creation · Value proposition · Specificity · Number/stat usage · Question technique · Controversial angle · Listicle structure · Caption-content alignment · Grammar · Slang appropriateness · Cultural reference · Caption shareability
Peak hour alignment · Day-of-week score · Trend window proximity · Cultural moment · Season alignment · News cycle opportunity · Competitor gap · Frequency optimization · Audience timezone · Holiday proximity · Event tie-in · Weekly rhythm · Monthly trend cycle · Platform update timing · Activity pattern · Fatigue avoidance · Series consistency · Launch timing · Cross-post scheduling · Story vs feed timing · Morning vs evening · Weekend vs weekday · Time-sensitive relevance · Evergreen potential
Vulnerability index · Rehearsed vs spontaneous ratio · Voice tremor genuineness · Personal story depth · Imperfection embrace · Filter dependency score · Overpromise detection · Clickbait gap · Audience respect level · Humble confidence · Self-awareness signal · Real vs performative emotion · Consistency across content · Behind-the-scenes willingness · Mistake acknowledgment · Opinion ownership · Trend vs originality · Lifestyle authenticity · Product placement honesty · Reply genuineness · Growth transparency · Failure sharing · Value-first vs ego-first · Trust signal score