Estevao,
The answer is simple.
Part of it is men flirting with them. The other part is that for women, exchanging words is like currency; it shows that they care about each other.
Men can be silent toward one another and still be friends. I have a lot of quiet male friends. Men can watch the football game together in relative silence and say, “Wow that was fun; let’s do that again next week.”
When you add women to the party, women are always talking and asking questions. “Why did the ref blow the whistle? Look at that guy’s beanie. Stupid commercial. I like their [the players’] tight butts.”
Have you noticed that women do NOT like dates in which there is relatively little talking? For women, silence is awkward.
But more importantly, talking is currency. It shows that you care enough about her to talk to her. Being silent is the equivalent of rejection for women.
Now, I understand that you’re jealous of the attention women get. It does seem that in this world, women get so much more support, whereas men are left hanging out to dry. Female beauty is worshiped. Schools pay more attention to female students. Family court favors the woman. Special attention is given toward physical safety of females. (But I’m not big and tall; I can’t fare any better!) And thanks to no-fault divorce and abortion rights, women can unilaterally determine the course of their families and blow us off. And in the West, not only do women get equal pay in many fields, they also get to keep their jobs while childbirth is pending. (And before you get angry, please admit that this is a huge economic concession!) Even groups exist for female athletes, female engineers, and female anything, just to encourage mere participation. Meanwhile, masculinity is demonized.
But don’t be jealous, for it is not the man’s role to seek external affirmation. It is your rightful role to become the man that you are supposed to be, without regard for any external affirmation.