In college a buddy of mine had aspirations of being a barnum & baily circus clown (which he now is). Anyway, he used a messenger bag and rode to all his classes and to the store (and in the store much to the chagrin of the managers) on his uni. When he someone stopped him to chat he would do a uni version of a track-stand and talk to them, then he would be off to his destination. He guessed that his speed was about 7-8 mph usually, which he based off of the 7-8 minutes it took him to get to the store that was almost a mile away, and he always rode on the sidewalk.

When he got really bored he would carry his clubs and juggle them as he went. He now does the fire wands, but didn't ever use them in college. Too bad, that would have been fun to see. He also didn't go out until the snow/ice was cleared from the sidewalks. Unis are cool, but I don't think they belong on the road.