Take a walk down Main Street

You decide to take a stroll downtown and see what kind of mischief you can get into. Walking down Main Street in the early afternoon is pleasant, and there's a decent amount of activity. You see men and women walking around, casually shopping and stopping to eat at various restaurants. It strikes you that you might be able to affect more than one person at once, and stop outside a local coffee house.

You look through the large windows at the people inside and concentrate. You send the thought, "God, I'm so horny!" to everyone in the shop, then open your eyes and see if you notice any change. The girl at the table closest to you starts biting her lip and pulling at the scarf around her neck as she reads her book. You notice similar behavior coming from other people in the shop, but just for the closest couple of tables. Okay, not bad for a first try, time to crank this up a notch. You send the command, "Moan loudly" to the shop, really focusing your all into it. Six of the twelve people in the shop suddenly and loudly moan, much to their embarrassment and bewilderment. You decide to hoof it before anyone notices the weird guy staring through the windows.

All right, so you have some limited ability to control multiple people at once! What else can you do...