Change Your Angry Face

Crisis has caused an anger and sadness feelings epidemic, weakest people has succumbed this pessimism wave, while strong ones remain optimistic and cheerful. The danger of this scourge is what feelings are contagious, yet this character catchy of them is useful to fight against evil thoughts, your goal is to relate properly to the people to end the spread of attitude with everyone happy.
You only have to go touching faces on the screen, when you touch a face all the faces around it will change its state, choose the right ones to get your goal.