I used to volunteer as a clown for fundraisers. This was to raise money for assisted living and group homes for people coping with mental illness. I painted faces all day, it was so fun.
I learned that a little grease paint can go a long way. It changes how others see you and respond to you and It can change how we see others.
The first thing to note when diffusing the “us and them” bias is to recognize what is superficial and how we let it misinform us. A lot humour comes from realizing something that we might have feared is just our own reflection!