Take some time to just sit and watch your surroundings for a while. In today's world this is something we don't do much of anymore. It seems that we are always in a hurry and never slow down to appreciate the things around us.
Sitting and people watching can be so much fun because you can imagine a conversation based on hand gestures or a volume of a voice. You can see people who are in love, people who are having fun and also people who are angry with each other.
Watch how people walk. You will see some with theirs heads up walking with a purpose, some walking looking at their feet and others walking as if they have no cares in the world. To really see people with no cares in the world, watch children walk around and see their smiles and hear their laughter. The best place to watch children with no cares is in a park playing. Maybe we as adults need to be like children sometimes and forget even for an hour all about the pressures we are dealing with.
To often when we hear someone humming or singing a song softly we think, "Why are they doing that?" Maybe this person is taking that break from their stresses and enjoying something that makes them happy or even brings back nice memories.
Learning to take the breaks and doing something that makes you laugh or smile is important. We can't live always at full speed otherwise we miss too much of the actual world around us. Spending a bit of time at a slower pace will help recharge the personal batteries but also let you see things a little differently.