For me, I only have the watch give notifications that I really want to see -- text messages (which aren't frequent in my circle of family and friends), phone calls, emails from my VIP list, and a couple other things (favorite teams' sports scores, etc). I can still go to my phone for more stuff, and the watch is reserved for the items that I want to know right away.
Shouting at the watch while standing in the middle of the room? Nah. I admit that I've taken calls while walking a few times and talked to my wrist, but they were brief. But I've taken more calls via the watch at home while I'm sitting at the computer or working in the kitchen (and a couple times while in the shower!), plus a number of times while driving in my pre-bluetooth car. It's pretty handy to be able to carry on a conversation without also carrying around a phone (and I don't have to wear an earpiece all day, either).
When I bought my AW in late 2015, I wasn't yet totally sold on it -- it was more of a "maybe". When I got around to using it, though, I stopped trying to use it as if it were a smartphone (you don't try using a smartphone as if it were a desktop, do you?) and started letting it do its thing as a smartwatch. That's when I started to understand its role better, and I became satisfied with what it actually does instead of being disappointed about what I thought it should do.