it's basically when instead of having the outline as one solid color, you make it lighter and/or nonexistent as it gets closer to the light source (or, in your case, some AA).
What do you mean by "sel-out'? Alright, I will try to work with the spike and see if I can make it look more "natural" I guess would be what you mean.
Pretty nice work :D
In this case, I think some sel-out on the hair that touches the face would help. Also, the little "spike" of hair looks very odd, try reshaping it somehow.
Wow, I tried to do exactly what you were describing and I have to say that looks so much better to me! :) thank you so much I honestly had not thought about that. Any other changes you think I should make to make it look proper? I'm going for a cartoony Paul Robertson like style if you know what I mean.