I mean, you don't have to smile if you don't want to. This chalk on concrete isn't a dictator trying to force you to live its concrete lifestyle. It's just a suggestion. If you want to smile, you totally should!
Last week I went out to shoot portraits which isn't something I normally do. In fact, this may have been the first time I've gone out with a subject with the sole intention of shooting portraits. I learned a couple of things, first and foremost that I'm completely awful at directing. To be fair, the person I was originally supposed to take pictures of that day wasn't feeling well so I ended up with a different subject and didn't have much time to plan anything out. Anyhow, I think they turned out rather well, all things considered. In fact, I'm actually quite proud of them. So uh, yeah... if anyone wants me to shoot portraits for some occasion, it's something that I can apparently do.