As I understand it, the larynx (which is where, if you have one, an adams apple is located) is not supposed to move with pitch at all. But moving it up a little (not cramming it with force into your head!) can change the resonance. As can softly tightening the muscles in the area above the larynx a bit to make the resonance chamber upwards of the larynx smaller ans whorte. This is what causes a more feminine resonance - in addition to some techniques regarding node, tongue and so on. None of that should be done with force and it never should feel like squeezing. Dr Thomas who does voice surgery in Portland even moves the Larynx in a bit higher position to achieve that result in addition to the pitch increase. A pitch increase alone will not make a voice feminine, after all.
But again, there are safe methods to do this and others that work for a while and then fail - and then you can get nodules on the vocal chords, or tremor of the vocal muscles , or spasmodic dysphonie, or a hyperactive voice - all of which is not good, needs speech therapy and sometimes surgery and Botox to cure. Then you are better off doing voice surgery right from the start

Think of it this way - Force, fight, power, strength are male principles, softness, elegance, care and carefullness, lightness are feminine principles. Depending on what you use to make your voice, so it will end up sounding