Andy Cohen is excited about trying different hairstyles on his daughter. The ‘Watch What Happens Live’ host welcomed baby Lucy into the world via surrogate last month and he admitted one of the things he’s most looking forward to about having a girl is getting creative with her locks. He told ‘Entertainment Tonight’: “It’s exciting! I’m already looking at her trying to think of how I want to do her hair. I have a lot of ideas that I’m workshopping. “I already know how to braid. “[And] I’ve got the greatest up-close view of hairdos every night on ‘Watch What Happens Live’! I talk to the hair an…