The sexiest thing about a girl is her eyes thus that is the first thing that you should look at. dhavalvadi 4 years ago The sexiest thing about a girl is her eyes thus that is the first thing that you should look at. 1 The sexiest thing about a girl is her eyes thus that is the first thing that you should look at. The sexiest thing about a girl is her eyes thus that is the first thing that you should look at.