Perform a KIND DEED to stranger (s)
Random acts of kindness are little or big things you can do for other people without expecting any kind of return. And of course this works both ways because doing something nice for someone else makes you feel good too and add to your sense of wellbeing.
-Buy a drink for someone homeless, or give them some food.
-If someone drops something, or is struggling to carry their bags, offer to help.
-The classic helping an old lady across the road.
-Offer to hold your umbrella over someone as they walk in the rain.