Controlling your turf translates to power when approaching girls in bars. You want your first interaction in your "house," not hers, because if she senses any upper hand, she'll exploit it to feed her ego. Before I approach, I ask myself who has to move if it goes badly. If it's me, I usually wait. When she's the one who must walk away if the conversation doesn't work, she'll be less defensive. Positional power matters—she knows she can stay put while I stand, so she becomes more of a bitch.