I live in a small enough town that I see girls I know from high school fairly often when I go out. My question is based on a circumstance that has happened a few times now. I walk into a venue and the girl in question is involved in a conversation with someone. I want to greet her. The old me would have stood by quietly until there was a lull in the conversation but that is just lame. How do I greet her without coming off a rude or awkward for interrupting?
This also applies to social situations in general, with people of both genders. How do I gracefully greet someone who is in conversation with someone else?