Yes this sounds weird. But if you are in a bar or club and she's with a guy that obviously isn't her boyfriend or husband. Buy him a drink. Find an excuse to give him a shot. Best way iv found to disarm her arm candy and you look good doing it. Ask if she wants one too, because it would be rude otherwise. If she doesn't want one make it a bro thing. This has worked for me more times than I can count. It opens up a conversation, search the rest of this sub to figure out how to close. Please keep in mind, I'm a 41 year old guy who's not in great shape. Still works.