How do you know if somebody has a crush on you?

I believe you can tell if he keeps looking or stareing at you. He may have a reaction if he passes you at times like a twich or shutter. He also may try to spend alot of time with you like always trying to sit next to you or trying to ask you awnwers and questions on some things. Though I have only known one boy in my life to know he likes me because he always looks over my soulder if I am reading something or doing classwork and asking question he should already know.Hope this awnswers your question!! =^-^=

If someone told you you are funny,pretty or hundsome and asking sometimes a question like do you know what is your favorite color,food,shape and subject :(