A boy can look back and smile even when he considers you as a good friend. It doesn't always mean that he likes you. There maybe some feelings but you can't be sure.
Flash him... with a great smile ;)
If he stares at you but when you look at him he will look a way and he will smile alot if he does.
look him in the eye and smile
smile and look back!
Smile at him. Keep looking at him but with a nice smile though. Giggle! :DD x
Next time this happens, give him your best smile before slowly looking away.
smile at him back.. that's a really lame question.
Smile back and say "hello".
Look back and smile.
swag and pretty smile,and nice
She probably likes him back or she is pleased that someone likes her, and thinks about it.
You can smile back if you would like. It is likely just a smile, which is a common exchange between people.