You need a reliable wing girl who knows the drill. My poor best friend or wing girl had no interest in the unattractive guy who we referred to as "hair-piece man". It was critical, however, that she conduct a conversation with the hair-piece man just to set up the cock block. For readers who don't understand the term "cock block" this is an important thing to explain. You see the cock block can be administered in a gender-neutral manner and must be taken into serious consideration in certain scenarios.