It can mean may things such as nervous, anxiety, uncomfortable, or have a lot on your mind. Some people don't even know they are doing it till somebody points it out. This doesn't mean something is wrong with you. This is just a way of coping with how you are feeling.
It doesn't need to mean anything. I suppose you want to know if he likes you. He could or he could not but you won't find out by the way he shakes your hand
your rotors are warped its gonna be a kinda pricey fix :-\
tremors or ticks in the context of torettes syndrome.
a peice of art that you create while your sitting on your toilet
It means to fall asleep while sitting (or standing).
It means to fall asleep while sitting (or standing).
The holes underground collapses while the ground shakes, leaving a stack.
Your brake rotors or drums are warped and need replaced.
There is an earthquake
It means to fall asleep while sitting (or standing).
It mean you had a bad dream.
he may have lung problems or is just overheated or scared if lasts more than a hour call a vet