[moonpony]

Antgirl is right. You know how Wilt, Eduardo, Frankie or Mac appear in little circles in the lower left corner of the game screen when you do favors for them? At least one of those circles has to be empty to perform a new favor. To empty them, you need to ask one of them to do one of your chores. I usually ask them to do a simple chore (garbage, fridge) for me to free up the space so I can fill up my popularity bar.