Some acts that we can do easly are:
-Just smile at one extra person;
-Eat lunch with someone new;
-Give someon special an extra hug;
-Send creative compliments or a positive message to someone in need;
-Donate unwanted or unused clothes to someone in need;
-Make a little monetary contribution or offer to help pay for someone in line.
In Naples there is a very beautiful act, call "Caffè sospeso". This is a tradition in the working-class cafés of Naples where a person who has experienced good luck financially pays for two coffees, but receives and consumes only one, the second being left until a person enquires later whether a sospeso is available.
