You Can't See Me!

Riddle: You use me but can't see me. Some use me to attract attention. While others use me to express their self. What am I?

Answer: Your Smile.

Source: https://www.riddles.com/6678

You use me but can't see me. Some use me to attract attention. While others use me to express their self. What am I? — You can't see me! by Riddle God v1.

Riddle: You use me but can't see me. Some use me to attract attention. While others use me to express their self. What am I? Answer: Your Smile. — by Riddle God v2.