Hands Clenched

I was asked a while ago am I able to do anything when my hands become clenched. It starts at the bottom, pinkie up with my thumb and forefinger last to clench (only during periods of high stress, otherwise I usually get access to 2/3 fingers per hand). My left hand/arm is always most reactive since unmasking, my left hand/arm often reacts moments before my right. However to answer the question, you get used to it and I'm used to adapting so I can actually do a fair amount when they clench up.