You can leave a date or movie/tv filming while you are in the middle of the task. You can go around town and click on the hidden xp places. The thing is, for every dollar sign, xp bubble and energy lightning bolt you find and click...you get 5 seconds subtracted from your energy timer. I go through all of LA, run into every store and also try to guess everyone's name. By the time I get back onto the set or to my date, I have accumulated 6-12 energy points.