If a boy throws your highliter and then comes up behind u and scares the crap out of u.?

then he puts his hands on my bak and pushes me and scares me really bad. does he like me? also when a boy steals your blanket and looks at me whn he iz wrestling with his lil sister and looks at me and smiles sometimes. wut does that mean? i think he likes me. can u please give some tips on how if a boy likes u. like if u can tell if a boy likes u or not. please give me advice. i really need it.