I have distinctive angry face even when I’m as happy as a pup, so I can relate.
I have one of those “WTF are you looking at?” faces that you wouldn’t want to meet in a dark alley, and forcing myself to smile ends up in something just like the last panel; plain creepy.
Something interesting happened to me once many years ago. I was in college at the time and had one of those retarded schedules that made me stay there all day and wait like 2 hours between classes. I was waiting in a hall for my next class and this lady comes up to me and says, “what’s wrong, you look so sad.” I was just staring blankly at a soda machine because I daydream a lot, and we’re talking about 1998, so I had nothing to entertain myself in between classes and no Gameboy either.
Anyway, it seems my poker face tends to look either angry or sad, and I can’t even control it. When I try to looks cheerful and smile I end up looking like a creeper.