Im having loads of trouble! please help me!!?

i cant tell sometimes its a joke and sometimes its not its hard to tell if he walked out of the room next time you see him just be like hey whats up have a tiny little conv with him and watch the signs and things he says to see if he likes you or not.or check in the next week if he still trys to say something or come up to you or have his friends their mite be a change he likes you if he does not and has left you alone for a week that may mean hes does not like you. but do not get mad or sad its just gods way of saying theirs going to be other guys for you when your that young guys will come and go and you will get in love and hurt its life so see what happens in the next week.