Do they just want in my pants?

Hi ok so at school two boys in 8th were ping by me then one boy said "you like him" meaning i like the other boy with him. i never even talked to these boys but i seen them and they seen me. anyways after that they were walking away and said something like your hot. then they got a drink of water and i was leaving they said hi baby and you want my... (im pretty sure it was it sounded like webbis) so like 20 mins later we saw them again and my friend said ooo you were checking her out and they just smiled and walked away.. so im asking what does that mean? like why were they doing that?