I went for the most basic thing I could think of while exploring written RP, which was new to me when I signed up. I did not even bother to add a space between the two words at first . I noticed most of the cool kids here have single word usernames though, and am considering shortening mine to "Velvet" once the cool down period is up next month. "Vel" or "Velv" are excellent nicknames as people have pointed out .