now this is usually the leader or top dog in social hierarchy. often abbreviated as just alpha, being alpha male is basically the understanding that you are confident and you perception of reality or your frame does not change because of anyone. your percieve it that way and it wont be changed. alpha males as usually guys who are naturally confident or PUA's because they know they have lots of fun and dont need to look for approval in anything because they are who they are.

the reason becoming alpha is good for a pua is because the traits alphas have are usually very attractive to women. traits such as social dominance and leadership.