Oh, this is a really hard question (to answer), because I seldom hang out with friends since my daily schedule has become full with a variety of tasks. As one of the people (who are) between 35 and 50, I must balance between work and family every day. We have just two things to do, one on the way home and one on the way to the office. So, if you ask me how I entertain myself, I definitely have my own way. Have you guessed it yet? Let me tell you, I just like staying in my car and singing some songs before leaving my car. It does work to reduce stress which helps me get energetic again to work or take good care of my children. It sounds really boring and tiring, but it's just for me. Elder people prefer going for a walk with friends or play Chinese chess under the trees. They look very relaxed. As for young people, having a date with their friends (unless you mean romantic partner, in that case you write “boyfriend” or “girlfriend”) is the best way to entertain themselves. So, everyone needs to entertain themselves in different ways. Don't always tell yourself that you have not any time to relax.