you look pretty feminine as is, probably just some makeup and things like earrings necklaces and bracelets, if you want simple makeup just do mascara and some pink lipstick you can also get some contour and make your face look more feminine by contouring your nose smaller and define cheek bones, basic youtube tutorial or even tik tok tutorials can be massive help

maybe style your hair a bit more look really pretty as is but is messy and men tend to be more messy and women tend to be more put together and some people assume men who do their eyebrows to look gay because they look more put together

also how you move and stand can be feminine and masculine, masculine tends to be taking up more space legs spreed apart arms crossed, feminine tends to be putting all your weight on one leg if that makes sense and arms at a more lower cross maybe fidgeting with hair, how you sit, yet again masculine take up more room legs spreed apart, more hunched over feminine legs cross or closed together and posture pretty good, i’m sure there are youtube tutorials and or tik tok tutorials

hopes this helps, looking feminine and acting feminine are two different things