Humor is a very important thing. It is a natural predilection. It is an emotional release.
The sense of humor has other things to do than to make itself conspicuous in the act of laughter.
HUMOR, CONSPICUOUS IN THE ACT OF LAUGHTER
When you say a friend has a sense of humor do you mean that he makes you laugh, or that he can make you laugh?
You may not be able to change a situation, but with humor you can change your attitude about it.
Smiling is definitely one of the best beauty remedies. If you have a good sense of humor and a good approach to life, that's beautiful.