PGSS sign for INTERFERE

INTERFERE
Hold 1st 1st finger hand, back outward and 1st finger pointing forward, and put 2nd CLAWED hand, palm upward & fingers forward-inward, on top of 1st wrist; then keeping hands in contact by wrist action jerk 1st hand upwards till 1st finger pointing forward-upward: return to original position and repeat action.
[Compare HINDER]