@set me=species:raccoon    (I'm now a 'coon! It's not specific to any species)
@set me=sex:male   (Now I'm a male 'coon. A lot of MPI script depends on male/female for the he/she attribute, so it's usually best to use these)
@set me=gender:male    (does the same as sex, but just in case the scripting calls on the gender instead of sex. Completely optional.)
@set me=smell:The scent of an autumn morning in a pine forest. Gotta be that air freshener in his pocket. (Now whenever someone checks my scent, that's the message they get.) 
@set me=say_prefix:purr @set me=osay_prefix:purrs (now whenever you speak, others see '<name> purrs, "<text>"')