Why do they poke me?

That is a strong sign that they want to have sex, and find you attractive. But don't go falling for every guy who pokes you, some of them just pokes you cause they like you as a friend, period. Guys tend to touch stuff they like. Smack their hands, poke them back or tell them to keep their hands off, that will make them stop and think twice. But don't ignore it.

At your age, it is a way to have physical contact without necessarily implying sexuality which is uncomfortable. They probably like you. Things will get less awkward eventually. Try to be cool about it.

Guys are weird. End of story. I have the same problem at my school with guys so don't worry. They either get enjoyment when you flinch, squeal, etc. Or they like you. It depends. Unless you like one of them back just pretend like it doesn't bother you!

They really like you and like bothering you but probley mostly bothering you is fun to them, this guy in my school constantly punches girls on the arm including me and I don't even know him or his name for that matter so guys are just strange sometimes.lol