First one: we’re in a club, I approach a girl I like out of a group of three. She is super friendly and available, sometimes I even start few dance moves with her, but her friend who is aggressively staring at me since the beginning, just take her away by hand, moving elsewhere with the whole group.

Second one: we’re in a club or even more often in the street. Same situation as before, I approach a girl out of her group and she is kinda interested, but this time a super annoying male friend, who often is a nerd or just an asexuated friend who is hitting on her since ages, just take his arm over her shoulder and takes her away or just move her “inside” or on the other side of the group.

How do you deal with those?