If you choose to be femboy instead of masculine, this is a good guide from reddit
"well coming from an actual girly boy/femboy/trap who is actually also trans *but not yet transitioned* I guess I can help...
train! TRAINING!!!!!!!!! Cardio, eat healthy, sleep healthy... workout those areas that r well feminine such as: waist, legs, butt, core, light arm training cuz u don't wanna get huge... running, yoga & parkour r also great for all that cuz u engage the whole body. Also u don't have to train for hours, just enough to make it INTENSE!
Mannerisms: u have to act the part & do it... if you're going 2b a femboy, u must look it & act it... So say acting super cutesy, talking softly but not in a whisper... usually being submissive helps denote that femboy/girly appeal. Be warm & inviting, hehehe laugh, smile. One thing I do, is use my hands a lot in berry cutesy girly ways/mannerisms...
Anime: anime can help u a lot!!!!!!!! see how the girls act, move, walk, speak, laugh, cry! check out the boys; then traps!
Hair: I have short jet black pixie cut hair; yet I rock it & get treated berry feminine like... or let it grow out. Eat veggies, fruit, milk, avocado, drink lots of water helps w/hair & other stuff too.
Clothes & Makeup: I am haha the exception cuz I'm kinda an army brat, but look tomboyish yet feminine so yeah... plus I also wear yoga gear sometimes so that helps. Start learning makeup; makeup can make ur face look super different from HARD MASCULINE to cute little Asian schoolgirl Trap! hehehehehe
laugh: I giggle a lot! so ppl generally assume I'm a girl or u knw girly boy femboy trap...
Shave: shave everywhere, but u have that down good!
Body: legs, butt, waist, face, hair, arms/hands. The main things that can help u & make u pass or not.... I feel berry lucky cuz I have the privilege of passing, so sometimes I take certain things for granted hehehehe.... don't be me!
hopefully that helps, hehehe I suck @ explaining honestly"
https://www.reddit.com/r/feminineboys/comments/fr0lip/how_do_i_be_cute_looking/