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😐
Neutral
Hold a relaxed, neutral face
and look at the screen…

Turn on the camera to read facial emotions, eye gestures, head nods and hand signs. Signs can be turned into spoken sentences for someone who can't speak.

🗣 Speak for me

Hold a hand sign (👍 = Yes, ✊ = I need help, ✌️ = Thank you…), nod or shake your head, or tap a phrase below.
hold 0.9 s to type

Right now

Emotion
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Eyes
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Head
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Hands
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Energy
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🧠 Mentalist read —

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Waiting for a face or hands…
Face, eyes, head and hands are read together, the way a clinician would.

Last 60 seconds

Stress / anxiety signs
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Mood map (valence × arousal)
Tiredness
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Attention on screen
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share of the last 10 s facing the camera

Emotion readings come from 52 facial-muscle movements (brows, eyelids, cheeks, lips, jaw). They describe what the face is showing, not what a person feels inside, and they can't diagnose anxiety or any other condition. Calibrate your neutral face for more accurate readings.

0blinks
–blinks / min
centergaze
–your left eye open
–your right eye open
–eyes-closed time

Eye gestures detected

Detects: blink · double blink · long blink (eyes shut ≥ 1 s) · left / right wink · looking left, right, up or down (held ½ s) · wide eyes · squint. Normal is about 12–20 blinks a minute. A much higher rate can go with stress or dry eyes, and long closures can mean tiredness.

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Waiting for a face…–
Did they sleep well? (from the face)
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Signs being measured

Alertness this session

Live signs: eyes-closed time (PERCLOS), blink length, long closures, micro-sleeps (eyes shut 2 s+), yawns, head nodding off, and a glazed stare. Face signs that work even on a photo: hanging eyelids, dark circles, red eyes, and drooping mouth corners. Eye shapes differ between people, so press Calibrate neutral while you're fully awake and eyelid droop will be measured against your own eyes. Dark circles can also be genetic, and redness can come from allergies or screens. This is an estimate, not a sleep test. If you're very sleepy most days despite 7–9 hours in bed, talk to a doctor (conditions like sleep apnoea are common and treatable).

Face appearance —

Facial actions

Head pose

–turn (yaw)
–nod (pitch)
–tilt (roll)

Head gestures

Nod = yes, shake = no. Both can be spoken automatically when eye/head commands are on.

Understands 24 single-hand signs (including 🫰 🤌 🤞 🫵 🔫 🖖), 16 two-hand and motion gestures (🫶 💞 🙏 ✖️ 👍👍 🙌 👋 👏 🤷…) and 40 hand-on-face combinations. Hold one steady to type its phrase. Settings lets you change what each one says.

📖 Gesture guide: everything BHAAV understands

✋ Teach your own sign

Show the sign to the camera, press record, and move your hand a little so it learns from several angles.

All events

What each sign or gesture says

Leave a box empty to ignore that trigger. Special actions: [speak] speaks the sentence, [undo] removes the last word, [clear] clears it.