The picture you are referring to was taken when he was about to leave office. I do not know the reason for it, but it was not a habit. I would guess that is was the photographer's idea. Maybe he thought the pose looked statesmanlike a la Napoleon. In Napoleon's day or before, the hand in jacket pose was a classical pose, rather like having a hand on one's pocket for a relaxed look. The right hand is actually tucked into his vest, not his shirt.
put your hand with your shirt and stuff it in your pants
ye, but it can be quite painfull
a composing stick
I am Shirt
If you want him to just let him do it! But if you don't just move his hand and put it were you want it. Like over your shirt.
its her disco stick from love game
In your hand.
Maybe Target
i thrust out my hand and grabbed his shirt
your hand wont do anything.
make sure your hand is wet
if you have a left stick your left hand goes low ( not to low ) on the stick and your right hand on the top of the hockey stick, for a right stick it's the opposite of holding a left stick, to tell if you are a lefty or a righty with a hockey stick try this both ways with a right and a left stick to see what is more comfortable for you.