It is possible that he could like her, or just think she is cute.
yes
it depends. he could be looking away because he is blushing, embarrased, or just doesn't like you. or something else could have caught his attention. there really is no solid answer for this question, it just depends
kinda hard to answer on just this... ASK HIM!!!
It could indicate friendliness, happiness, or simply acknowledging your presence in a positive way. Smiling is a universal expression of positivity and can signal a desire to connect or engage with you.
He keeps looking at you, smiles, and nervously looks away.
There are several reasons why someone looks away really fast when you smile at them. It could mean that they like you, it could also mean that they are really shy.
He probably likes you, but is kind of embarrassed
If he looks at you alot and smiles or just looks at u and looks away when u look... or if he seems like a shy guy or if he seems like he is trying to show off in front of you
Not necessarily. Looking away first could be due to shyness or feeling uncomfortable. It's not a definitive sign of romantic interest, so it's best to consider other aspects of his behavior and communication to gauge his feelings.
It is very likely :D
she was laughing at the wall behind you and when you looked at her she thought the wall was looking at her
If he looks at you and smiles before blushing and turning away, or turns red when your around him. Those are two good ways to tell that somethings up.