How do you know if guys like you???????

hi people how do you know if guys like you??????? i mena tehre are a few guys at my school thati tink are hot and i like them but i don't know if they like me i mean i am not a slut i will only date one guy but tehre are about 5 of them they always hit me softly they trip me on purpise they joke arond they laugh at me for no reason and everything liek flirting type how do you know if they like you. do you think these guys like me?/???????? plezzzzzzz help ad i don't want to hurt anyones feelings by dateing one person