he is either embarrassed or not telling the truth... depending upon the question
Yes
If a boy looks at you it usally means he thinks you are cute, and if he thinks you are cute most likely he likes you.
No way
just checking you out.
They're siblings.
I doubt it...but if he looks at you and kinda checks you out THEN he probably likes you
almost certainly
he looks at you a lot and he smiles at you.
He hates you. that is not true that he hates you he mabe likes you
He only wants your looks!
He's in love with you.
It means that he wants to make you his!