Newbie question, how do you take screenshots without the UI being in the way?

Otherwise, here she is




Please disregard my improper language towards an RMT spammer before being blacklisted, lol. Since I've only been playing for about 2 months now...I just found out you can blacklist them and that the color of the words are specific (I thought it was just custom color choice and all chat being global...lol).