Maybe if I start with overtly "weird" faces, that will help. I'll have to try to find a book or magazine or something.
Here's some of what I've got, so far:
I don't know who or what this thing is. It's horrible. Moving on...
Tried to push this one a bit further, but lost the likeness of the model.
So yeah, that's that for now. Please give me advice, if you have any. I've been looking at examples, and reading up on caricature, and I always think that I've got it, but once I start drawing it's like I forget it all.