Break your daily routine. Order something you've never tried for lunch, take a new route for your morning run, wink at someone if you're usually shy, go all day without checking your email - the possibilities are endless, and the choice is yours. It's up to you how much fun you have with it. :*)
Did you feel invigorated? Uneasy? Different? If you like, let us know how it went in the comments.
***WARNING: THIS BLOG IS HIGHLY LIKELY TO CAUSE INCREASED INSPIRATION, LAUGHTER, AND HAS RECENTLY BEEN LINKED TO TURNING PERFECTLY NORMAL HUMAN BEINGS INTO DIRTY LITTLE FUN-HAVERS. UNLESS YOU ARE PREPARED FOR THAT, DO NOT, I REPEAT, DO NOT ATTEMPT THESE ACTIVITIES!***