I posed my boyfriend sat with his legs open (to suggest dominance as a typical male pose), slouched slightly but a grin but holding up a joker card with myself behind him, kicking my leg up to one side and pulling a face with my hands pulling my lips and crossing my eyes.
I photographed a Harley not too long ago at MCM Comiccon with her friend as Poison Ivy (so not quite the Joker) but she got onto her friends' back and held her hammer as if she was going to hit someone with a goofy grin.
Past cosplays: Hatsune Miku, Alois Trancy, Fem!Ciel, Little Sister
In Progress cosplays: Heartseeker Ashe (LoL) - Pattern Made. Harley Quinn (Burlesque) - 20%
I take cosplay commissions :3