I've noticed this phenomenon too.

The point of becoming an alpha is that you've worked incredibly hard to reach and sustain that position. So work hard and try to gain some self-esteem. Pursue something that's important to you. In most cases, as long as you do this while you're also learning the correct behaviors, you'll be fine.

Remember: Just because someone is mouthy and obnoxious doesn't mean they're true alpha males. They're just people who speak to be heard, not to actually say anything. Find your own voice. Make your words clear and meaningful.

Another tip to remember is that some chicks just won't dig you identity. It's kinda like picking a book to read: some people like mystery others like adventure some are into post-modern. Figure out what your general girl audience is and go for that. You usually have to develop different approaches for different types of girls. But that being said, confidence and body language will always play a huge roll in both seduction and social interactions in general.