How do I get my girlfriend to wear some make up when we go out?

You could tell her your curious to see how she would look with makeup. I'd reassure her that you think she is beautiful the way she is normally.

As a girl, I would be pretty insulted if my guy asked me to wear makeup. Think about that.

I would tell her how you feel, and offer to have a "make-over" done to her at one of the make-up counters in the department stores, etc. Maybe if she sees how much more beautiful she is with it, she will start using it more often.

Well you could ask her too politely though do just blurt it out. Or you could just let it go, but as I said if you relay are adamant about it then talk to her about it that way she knows but also stress the fact you find her beauty full with out any way.