The people are two trapeze artists who work in a circus, possibly Cirque du Soleil or another popular circus in the United States. They are currently performing in front of a large audience. One is a woman performer and one is a male performer. After swinging high in the air, they grab hands. Now that they are holding hands, the woman will probably let go of her bar and hang on to the male performer. They will swing back and forth, performing various feats to impress the audience. Before, they were doing the same thing, entertaining the crowd. The people are feeling energetic and lively. They are feeding off the reactions and applause coming from the crowd, thus increasing their adrenaline. Since performing is something they enjoy, they are probably feeling happy as well. 
