If you don't want the other person to touch you like that, tell him/her to stop. And if he/she doesn't stop, you have to tell an adult that someone is touching you in a way you don't like.
Tell him to stop or you should tell someone such as your parents or teacher as this is wrong.
Tell them Stop! and mean it
Punch them in the face
tell them youve got knits
You could not tell if someone was touching your hand
YES
You couldn't tell if someone was touching your hand
simply and politely say stop calling me and tell the reason why.
tell them to
If your to shy then come up with creative ideas like touching their hands or be nice to them
If you don't want him to, then tell him. If he's a good guy, he'll understand. Just be ready to tell him when you want him to stop.