as a guy myself I will say, never trust what a guy say, the only thing you can judge him with is what he is doing and has done. Dont let his charming voice and words alter your judgement. Then concentrate on the feeling you have behind your belly boutton when you are around him, and you will feel what are his plans related to you. Women have a wonderfull feeling, just listen to it, but dont trust your emotional brain.
Depends, If you guys are liike friends then im sure he will go after you. If you are like just seeing each other in the hall or in class, then he might need something to make him feel like u want him too.
Um there is lots of reason. sorry I answered this question like months later. 1 is He stare at you like alot. 2 is he puts his hand threw his hair when your looking at him. Look at his body movements. He might shake a little. 4 is he can be mean to you like call you names.