Rule 1: Never yank the hand straight off. This will result in the little ball and peg coming out of it's socket and going along with the hand. Worse case is the hand will no longer be tight, if you can get the peg back into the socket (because you just bent the tiny tabs that held it in place)
That is the only rule you must follow if you want to keep your lady pristine and enjoy all the various hand sculpts you get.
Please excuse the conditions of my hands, I have issues and need to get help clipping my nails.
Put your figure in a comfortable position with the arm extended as shown
Now press down on the hand gently as far as possible and stop when it won't go any further
Now insert your left thumb nail into the gap and put pressure against the base of the tab. Put your right thumb nail into the gap slightly pressing against the back of the hand.
Simple take what ever that finger next to your thumb is called on your right hand and gentle pull the hand towards you. It will pop off (might even pop off when you insert your right thumb nail)
Putting the bracelet on (these are meant to fit the gap nicely). If you have fancy bracelets, simple slide them on and proceed to put the hand back on. If using the ring bracelets then pull the flesh back till the stud is showing with the ring held in place. Always make sure the pin is straight and the hand will pop on with gentle force.
You are done and now do the same on the other arm!