What is the best way to tell my girlfriend that I think that she would look ';better'; with short hair?

What is the best way to do this without her thinking that I am insulting her?What is the best way to tell my girlfriend that I think that she would look ';better'; with short hair?
JUST SAW I THINK YOUD BE REALLY SEXY WITH SHORT HAIR SHE WONT BE OFFENDED WE DONT MIND WHEN YA'LL TELL US THINGS LIKE THAT