how do men immediately know im a woman through the screen???

as the title says… i will make a new friend in a game with no voice chat or anything and somehow they can just TELL!! like im just trying to be buddies ): thought i made a new pal this week and then he somehow clocked me as a girl and immediately started calling me pet names. as soon as he called me “dork” the first time i verbally said “uh oh”. this has happened to me dozens of times at this point. maybe im too friendly, but i don’t want to not be myself. UGH