Let's use a corollary that some of us can understand.
Let's say it is a Friday night back when you were in college. You are going to meet the good looking girl from Psych at 11 at Huskies. How do you play it? Do you stand by yourself staring at the door so when she walks in you run up to her and go for the close right away? Of course not, she will think you are a total dork and go home with some 6'2 guy that claims to be a walk on for the basketball team.
The best play is to be casually chatting up some other girls so when she sees you she thinks she has a little competition and that you don't need her. The first girls have to be just good looking enough without major personality flaws to be a credible alternative (think New New Big East). Too hot, depending on the guy, and they are not believable (think Big 10). Then, you just pay some attention to her until she starts sending some signals that she is good to go. If she doesn't send the signals, you focus on the first girls as the night goes on until Psych girl gets the message that you are not desperate and the first girls think that you are really interested in them. Much higher percentage of going home with someone.
If you go all in on Psych girl, you are very likely to go home by yourself or find yourself at a Carriage House after-hours at 3 in the morning with 20 guys and no women (think Big East without WVU/Louisville). Believe me, I learned this the hard way in college. So do most guys.