Ummm u shouldn't shake when I get nervous?!?!?! But if u meant why do people shake when they get nervous um idk sorry :(
They are probably nervous or have had an orgasm.
Try and calm your self down. And try not to think of things that make you nervous
If you are shaking then the emotions that make your shake could be nervous, excited or very angry.
You are probably nervous or gripping to hard.
Because he was up in the air.
They're nervous because they like you!
Because she likes you.
Sweat Stutter Shake Blush Nervous Laugh
he may be nervous
I am the same it is because you have a crush on them.
Because they are either cold or nervous.
You could be nervous. It happens sometimes.