Non manual behaviors are used to distinguish between certain types of signs and questions.
For example: You can sign DON’T LIKE, or you can sign LIKE while shaking your head. Both are acceptable in the Deaf community.
For a yes/no question:
Raise your eyebrows and widen your eyes
Lean your head forward
Hold the last sign in your sentence
For a wh-word question:
Lower your eyebrows
Lean your head forward
Hold the last sign in your sentence (usually the wh-word)
One-handed signs:
You would use your dominant hand (right hand if you are right handed and vice versa)
Example: like
Two-handed non symmetrical signs:
Your dominant hand would be the hand that moves while your non-dominant hand will remain stationary.
Example: college
Two-handed symmetrical sign:
Your dominant and non-dominant hand will move the same motion with the same handshape.
Example: teacher