Nothing wrong with picking up girls for some uncomplicated fun. I just get the impression that sometimes men are so interested in the game, they don't actually see the woman. That's what fresh's proposed approach sounded like to me. games of seduction are fine if both parties are aware that's what they're playing. If a guy hides who he is and just spends the entire time being, or saying, whatever will get the women into bed, it feels almost like victory through deception. That's where it becomes shallow.
Go pick up girls fresh. Nowt wrong with that. Just don't be messing with people's heads to do it. Women = people. That doesn't mean you have to treat each encounter with gravitas, just treat the women as people. Chances are there's plenty of girls looking for just the sort of uncomplicated fun you're after
