I@Sfhead-PalmBack I@NearSfhead-PalmBack

Alternative forms

 * The thumb may be extended into a Y handshape if the following sign begins with a Y handshape.
 * The little finger may be lower, contacting the cheek instead of the side of the forehead.

Etymology
Presumably from initial letter of the  or  and the sign.

Production

 * Move the hand forward to the next posture.
 * Move the hand forward to the next posture.
 * Move the hand forward to the next posture.

Verb

 * 1) to suppose

Adverb

 * 1) if;
 * 2) hypothetically;
 * 3) as if; as though; metaphorically
 * 4) * 2009, Michael DiMartino, Addicted - Sign Language - CaptainL0ver (“Captainl0ver interpreters Kelly Clarkson's song Addicted”), 0:29:
 * "ase"

- YOU SUPPOSE LIKE DRUG. — “It's (metaphorically) like you're a drug.”