Fix your grooming. Foster et al. ‘Alpha Male Chimpanzee Grooming Patterns: Implications for Dominance “Style”’, American Journal of Primatology, 71, 2, 136-144, 2009.
Wear red shirts. Elliot, A.J. et al., (2010), 'Red, Rank, and Romance in Women Viewing Men," Journal of Experimental Psychology, Vol. 139, No. 3, 399–417. I think the reason for this is rooted in evolutionary theory. Think of ancient times when men have to hunt wild boars and bring home the kill as blood drips down their bodies so the women will have something to cook. Or maybe, think of the warrior who gets home all bloodied after a great battle.
Being dominant or alpha is NOT an emotional state. You ARRIVE at that emotional state when you're on top in a certain aspect of your life. When you're on top, you get the benefits of being alpha which translate into higher adrenaline and hence higher energy, higher levels of testosterone and hence higher sexual attractiveness to women, and of course, greater confidence.
Are you a badass at chess? Leverage on that. Show (not tell) your dominance. Telling kills attraction.
You can also use evolution to your GREAT advantage.

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Approach. Open. Escalate. Isolate
Here are my two essential rules on texting that will save you tons of time and money:
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