Often I am asked how to sign YES and NO in sign language. Indeed there are formal signs for these words, but, frankly the obvious choice is to shake your head YES or NO.
If one wants to learn how to sign YES, simply make the handshape S (as below). Then bob it up and down as if it is a head nodding the affirmative.
To make the sign for NO use the “N” manual alphabet handshake and close it to the “O” handshape. Of course, adding the headshape NO is a bonus!
When you say NO but you mean WRONG. Try this sign instead!
What if you are indecisive?
The MAYBE sign is made with hands being alternated up and down. As if you are saying, “If not this one, then that one”.
And, when you see DOUBLE ZEROS, that means NOTHING, NO WAY and even in Spanish – NADA!