Hey wanna see a neat party trick?

Next time somebody sidles up to you at a party and challenges you to prove your consciousness isn't an illusion, you can tell them this:

Consciousness is not subject to eliminative reduction; i.e., you can't call it an illusion less than consciousness, because the illusion of consciousness is consciousness.

If you consciously believe you are conscious, then you are. See? 

Now we're hanging out with Descartes, mon ami. Cogito ergo sum. I think therefore I am.

Ta da … Whip it out at your next fete or fiesta, and think of me.

For further fun reading, check out the neural correlate of consciousness. Good old NCC, it's a hoot.