I have been told at work that I have the largest RBF known to mankind. I guess I have never really felt the need to smile unless something is funny or I am at a interview trying to make a good impression?
I mean, no one in life can be smiling 24/7 all day and all night right?! I know for myself my humor can be quite dry and I am not the most upbeat or positive person in the world, but smiling without a given reason just sounds ignorant to me.