How might I get Homecoming Court?

At my school there are three girls, and three boys from Freshman, Sopre, and Junior Cl. (As well as a good number of Seniors from which the King and Queen are chosen.) Also, there is no campaigning or application process, all is based on nominations. I'd really like to be chosen for Junior court this next year, but i'm a bit of a nerd. I'm in Orchestra, Academic Coaches, AP Cles, Japanese Club, Dance Team, the Library Advisory Board, Key Club, Link, etc, etc, etc. I'm not looking to change any of these groups, nor do I have any room to add more. This is just what I do. :) I'm pretty well-liked, but go to a school with 3,100+ students. Any tips...at all? (Snide remarks are not welcome.) Thanks! :D