Meaning: Confident in what one thinks or knows; not having any doubt that one is right about something.
Pronunciation (sign description): Dominant forefinger (handshape), palm facing left if right-handed (orientation), tip of forefinger in contact with the chin (location), moves forward from the chin once (movement). In some contexts, slightly nod once (NMS).
Variation; used with emphasis to reply to a request that one is happy to do something.
Pronunciation (sign description): Fingerspelled loan.
First 100 words.
As you feel more comfortable with the first few hundreds of ASL signs, progress further with your vocabulary and learn signing more.