Yay!
Neckties are great. Dressing as yourself is great.
Not getting called "ma'am" is great, too. Though you will perhaps soon find yourself annoyed by "Ma'am"s delivered with an irritating self-satisfied note ("I am so clever, I figured you out, ma'am.") Might wanna be prepared for that. Most people find me ambiguous, look hard, and then clock me as female, but occassionally there's somebody who gets a strong male impression. I once had a casual friendship with a girl who responded that way. Eventually somebody outed me to her and she thought it was oh-so-cool but started calling me "girlfriend!" in a gleeful pleased-with-herself fashion. I asked her to cut it out, she didn't. Feeling like she knew something everybody else was missing (though in fact, she didn't) was more fun for her than being friends with me, I guess. Now she gets neither.