Umm.. not really. It just something you have to work with, it kinda comes naturally to me.
I guess just learn some riffs that require you to use your pinkie to play them properly.
Umm it depends what you want to get better at.. Its all about riffs you learn to play and what type of picking they require you to use.
Please take my life, I'm bored and rather be in the underworld!
Anyway, I'm just listening to some songs by a new band that I took interest in recently.