twofaces, I wasn't part of the chat, but I'm sure they will be glad to hear what you said here.

To answer your question, I do think attitudes can be affected by what you do. Some classic research in my field, social psychology, verifies this conclusion. And I am a firm believer that we need to try to spend more of our time on positive things. I like humor myself. It helps me to deal with the woes in this world.