I found it that those "advices" about becoming "alpha" or "how to become dominant" most likely are very unsuccessful because I think that biology trumps everything. When it comes to social interactions, you either "have it" or you don't. You can't just "fake it" at least not for long enough. And this works for both men and women. If you are a "not so outgoing/influent" person, your best bet is to dress the shirt life gave you and stop being something that you are not. I have fount it, as a woman, that to build my whole personality around being "beta" (shy), which I am, made me more attractive and genuine - and I even got compliments about it. A man came to me saying that he found my personality to be very attractive and cute. It's much better than faking cockiness. At the end of the day, you will look like a caricature of something you are not, and you will look stupid. Everybody is different.