The sign for "negative," or "minus" touches the side of your "index"
finger to the palm of your base hand.
NEGATIVE or minus:
For most simple negation you don't need any separate sign--you just shake
your head negatively while signing.
For example, if I sign "I TEACHER" while shaking my head negatively, it means
"I'm not a teacher."
There is also a general sign that means "not." To sign "not," form your
dominant hand into an "A" hand. Touch the pad of the thumb under your
Quickly move the hand forward a few inches.
There is a general sign for "don't."
This sign isn't used for signs like "DON'T-LIKE"
and "DON'T-WANT." Such signs use
"reversal of orientation for negation" instead.
I rarely use this sign unless I'm attempting to strongly emphasize a point.
This is the general sign for "no."
You can use either a single or a double motion. (Meaning, you can close
the fingers and thumb either once or twice.)
"None of your business" = NYB (Or even NYOB).
I've always thought this was interesting...the sign for "It's none of your
business." It comes from the first letters of the words "none of your
business." Often the order is changed around a bit to be NYOB. The reason
is likely because it "rolls off the hand" much more smoothly than NOYB.
I haven't seen this sign for quite a while, (I guess I've been hanging out
with a more polite group?), but it is such an interesting sign that I couldn't
resist sharing it with you: The movement is quick and ends with a type
of flourish (in which you change into the B using sort of "be gone
peasant" flick of the hand).