Be playful back. Tell her she looks like whatever celebrity is with the celebrity she said you look like even if she looks nothing like them.So how can you be playfull about this when girl says something like:
"Have people told you that you look like [insert some celebrity name with same physical quality as you]?"
You essentially upped your VALUE in her eyes by showing her that, if she wants you, she has to at times do things that you like to do. You are SOMETHING after all. You are NOT FREE. If she wants to hang with you, it's going to cost her something — time, effort, money.
Quote taken from The SoSuave Guide to Women and Dating, which you can read for FREE.