What also worked for me is to paint on my eyebrows a bit darker and thicker (but not so much it looks too fake), as I naturally have very thin eyebrows that look really feminine.
Also try to speak more monotone and slow, an spreak from your chest instead of your throat. The way you speak (slow, confident, instead of fast and nervous) often matters a whole lot more than the pitch of your voice. Speak as if you are in control.
Guys are generally speaking also more dominant than girls, ESPECIALLY in the presence of other guys (they have to 'prove' they are strong and all), so try to be straight to the point, direct, in charge, etc. Also if you try to use the male toilet (it is perfectly possible pre T. I do it all the time when I am in an environment where I am fully presenting as male (so also with name and all)), just walk in quick, pop into the nearest stall, don't look around, don't look at other guys, don't talk to anyone, do your business and get out asap.
Also there is this 'rule' that if a big guy approaches a small guy on pavement, the small guy always yields.
If you greet another guy, just a simple "hi" or a nod is enough. Do not say "Hello sir, good day to you. How are you?" Yadda yadda yadda unless it's a friend and you want to talk with them or something. In that case a simple "Hey mate! How's life?" or something is good.
If you shake hands (this applies to females too btw) look the other person in the eye, grip firm but don't squish their hand.
Also guys among each other do a lot of mock-play and insult each other all the time, this is NORMAL and just a sign of friendly competition (you will know when it is serious, lol). Do not shy away when they do it, or feel insulted, but mock them back just as hard. Guys in a group are constantly competing and testing each other, if you don't participate you are instantly viewed as the 'weak one'.
Also, cursing and bad language is generally more accepted among guys than among girls. And guys do NOT do this sort of mock-play with girls. (what I experienced is that they are often much gentler with girls than with fellow guys. Unless they are douchebags)
Putting your hands on your hips is generally considered feminine, putting your hands in your pockets masculine/something guys do a lot.
If you get a firs date, the guy pays. It's just decent. And if you don't, it's basically a way of saying "I liked it, but let's just stay friends". If it's a date, the guy pays. Period. Also, take her coat, open doors for her, etc. (if she likes that and is not some sort of an 'equal rights'-feminist who insists she can do it herself) Respect her, listen to her, laugh about her jokes, tell something about yourself and try to flirt a little if you see she likes you, and you can even get a lady as trans and pre-T. (if you pass, like when on T, tell her AS SOON AS POSSIBLE you are trans. Preferably during or before the first date. Then she knows what she's getting into and the chances of her accepting as MUCH bigger)
Buying too big clothes is not (always) a good idea as they can make you seem smaller, etc. and a sports bra can be used as a binder for the smaller chested guys (chesticle size AA/A)
Wow, this got longer than expected, but that's all I can think about right now, hope it helps.
