To sign expert, form an 'F' handshape with your dominant hand by touching the tips of your index finger and thumb together, keeping your other three fingers extended. Bring your hand up to your face and tap the side of your thumb and index finger against your chin. You can use a firm, single tap or a double tap to emphasize the level of skill.
Sign 'SHE', 'MATH', then 'EXPERT', using the firm 'F' handshape on the chin to emphasize her high level of skill and knowledge.
Sign 'MY', 'CAR', 'BROKEN'. Then sign 'NEED', 'EXPERT', 'FIX', tapping your chin clearly with the 'F' handshape to show you need someone highly skilled.
Sign 'HE', 'COMPUTER', 'EXPERT', making sure the 'F' handshape connects cleanly with your chin while using a confident facial expression.
Sign 'SHE', 'MATH', then 'EXPERT', using the firm 'F' handshape on the chin to emphasize her high level of skill and knowledge.
Sign 'MY', 'CAR', 'BROKEN'. Then sign 'NEED', 'EXPERT', 'FIX', tapping your chin clearly with the 'F' handshape to show you need someone highly skilled.
Sign 'HE', 'COMPUTER', 'EXPERT', making sure the 'F' handshape connects cleanly with your chin while using a confident facial expression.
They are very closely related and often use the same 'F' handshape on the chin. However, 'skill' is also sometimes signed by grasping the non-dominant hand's edge with a pulling motion, while the chin sign is more specifically used for 'expert', 'proficient', or 'clever'.
Both are acceptable! A single, firm tap often emphasizes being a true, established expert, while a double tap can mean 'skilled' or 'proficient'. As a beginner, either variation will be clearly understood in context.
You should always use your dominant hand for one-handed signs like expert. If you are right-handed, form the 'F' handshape with your right hand; if you are left-handed, use your left hand.
