2. Shy blush
Perhaps you know how it’s difficult to flirt with shy guys, but it doesn’t mean that you should avoid such type of man.
If you notice that a guy blushes around you, this is one of the most obvious signs he is trying to flirt with you.
However, not only do shy guys blush, any guy can actually blush when he sees a beautiful girl. Blushing is a bodily function that we can’t control and if he blushes around you, he certainly likes you.