Hey a friend asked me to smoke with her a week ago & it wasn't until after we were smokin when she said she just found out she had herpes will i havei?

You may: And it may never manifest itself so you may not know it. The moral of the story is you should not smoke. If at 21 years of age peer pressure remains an issue, you will need to have it addressed.

Active lesions?: If you friend had active lesions about the mouth, then I'd be curious about your potential to have acquired the virus. If you friend had no active lesions, then your chances of not having acquired the virus would be much better.