it may be due to
1. this boy is shy around girls and may like you, thus when he is around you he will start to blush without knowing (i know since i do this around girls i like)
but their may be other reasons why his face gets red, but their is a high chance that he likes you
i really have no freakin clue
i really have no clue
no not really i have no clue
I really have no clue\
I have NO clue
I have NO clue
really no clue really no clue
I really have no clue.
i really have no clue
i really have no clue yet
dude, i really have no clue what your on about!
i really dont have a clue