Little demure smiles
When you compliment them and they feel a little embarrassed, and they can’t quite meet your eye, but they smile. I find that kind of thing sexy.
Seeing a girl blush is cute and sexy all at the same time.
Seeing them dance
When girls think nobody is watching. The rhythmic movements coupled with her having fun without any self-consciousness, Very sexy.
When girls have their nails and toenails polished and painted a certain color (I like light blue). I don’t know why but it is cute.
The way you walk.
There are some women out there who just walk in a sexy way with their hips.
We love that ! Why? Because our skin isn’t smooth, because we are guys.
These are the only universal ones I can think of, everything else is unique to the individual woman.