A more realistic answer is because I usually try to connect with the character I'm playing as, like if I were that character myself, especially in RPGs where you have more freedom to create said character, and it's much more difficult for me to play as a female because I'm more used to being a guy.
--
~Halo You're not the brightest.
http://img404.imageshack.us/img404/907/bandfinisher.jpg