My friend, girls have different ways to show there likes & dislikes, this girl you talking about seems the same, she want to send you some signals its on you how to interpret them,usually girls are shy and like when boy take the first step, so may be you make your move and talk to her, i think you like her and she want to know how do you like her hairs, you go and say to her which way you like her hairs more, be a man buddy, make a move, have a good day