Some call it the alpha male syndrome, others the peacock syndrome, I just call it insecurities. Whenever I go out and see dudes act like this, I just laugh to myself, or with the ladies around me

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Personally I don't know what makes the guys do these things, because maybe I don't have the desire for attention, make an ass of myself, or try to make an ass out of someone else.
The way I look at it, is the more people try to draw attention to something, is because they are really trying to draw attention from something else.