You really develop an appreciation of how fast the NHL game is watching it live. On TV I don't think you get the same sense of how little time and space these guys have out there.
It's also crazy to see how much less you see at ice level vs bird eye view. There are times when I'm in the lower bowl and I'm watching the play in one direction and someone shoots out from outside my viewing range and within moments crushes an opponent with a hit or whatever... and you feel that adrenaline of narrowly missing being run over or whatever.
Two things I enjoy the most watching NHL hockey live.
1. These guys can absolutely rifle the puck. You can tell how hard they can shoot during the warmups and realize that if they were to show up at one of your Sunday league games, they could probably snipe any amateur goalie from the blue line without a screen easily with a wrist shot.
Even their passes are harder than most people’s snap shot.
2. Fatigue becomes apparent when you watch a playoff game that goes to 2OT. You can obviously see that players are tired on TV when playoff games run long, but in person, you realize that the average human would’ve passed out from fatigue if they had to skate that hard for 3 hours or more. Their conditioning is outstanding, 1st liners and 4th line grinders alike. On top of it, you can see how tiring it is to fight another athlete in the middle of it.
From behind the net, sometime you think there wasn't a muffin all game even if your buddies in a group chat are complaining about all the weak shots. That puck is fast and loud. There are plenty of times where I'm watching the play, seeing it get set up, I blink and then a loud explosive sound emits from where the puck hit the boards.
When the puck hits the post, it is so much more satisfying of a ring in person than on TV.
The fatigue thing is absolutely true, but there's also very human expressions at ice level you cannot notice ever and might even miss if you aren't watching. For instance, watching a guy bracing for a hit. Or the look of a defender chasing someone on a breakaway.
Goalie habits and superstitions. Always an interesting thing to watch between whistles and commercial breaks.