If we can laugh together, then we like being together, which adds up to unity
Idea: have a "joke night" - everyone tell jokes
Happy heart makes the face cheerful - Proverbs 15:13
Cheerful heart has a continual feast - Proverbs 15:15
Cheerful look brings joy to the heart - Proverbs 15:30
Cheerful heart is good medicine - Proverbs 17:22
The phyical environment need to be pleasant
Dirt, filth, and clutter do not create an atmosphere of closeness
The environment says, "we don't care", then people stop caring about each other