How do you make a seductive face?

For my dance this year, we have an arribean nights/ aladdin dance and our teacher told us to go home and figure out how to make a seductive face- not a fake-y smile. Problem is, I can't do that. I just don't know how. Shes beginning to get annoyed with us, only a few days til recital!Anyone have any pictures or tips on how to make a sedutive facial expression? Please help.