Expertise. I'd like think that I have the lowest level possible of expertise in a few fields. Juggling for instance, I can do a 3 ball juggle for 5 minutes on pretty much any attempt. I can do cascade juggling for, erm, haven't counted, but most people can't do it (or know what it is XD). And I can juggle rings, clubs, etc along with various tricks behind the back etc. I'm not the best though, I can't do 5 ball juggling so that's why i'm at a low level of expertise.
Diabolo is another kind of juggling with two sticks connected by a string on which I spin/throw/swing the diabolo around, and I can pretty much do all types of diabolo: single, double (with two), vertex (vertically instead of horizontally), but I can't get all the tricks right, and some I can't do at all. I also can't do triple (nor do I have 3 diabolos XD).
The issue is that after I gain this mediocre level of expertise, I sort of get bored and drop it :/
I can solve a rubik's cube in 1:30 every time, but I haven't tried to beat my record of 45ish seconds in several years.
Also percussion. I'm good with that, not stupid drumline I can play more notes that you can in a second type drumming, but good classic 4 mallet or xylophone or timpani solos...
ya.