Userpic Meme!

Here's a cute userpic meme, courtesy of laura47:

Comment on this post. I'll choose six userpics from your profile and you'll reply here (or you know, your own journal, whichever), explaining what they mean and why you're using them. Post this along with your answers in your own journal so others can play along. Also, feel free to please ask me about my icons here, as well.

Since I have exactly 6 userpics right now, I get to ( describe them all. )

So really I only use my default userpic with any regularity. What should I use the other ones for? Hmm.