By walking around while the game is in play rather than taking the nearest available seat (or step), you are obscuring others vision of what is going on. I have seen on numerous occasions when the puck has left the ice, it has resulted in a trip to A&E.
Safety announcements are repeated over and over at the games;
1) Always keep your eye on the puck
2) Do not walk around while the game is in play
and it is for a very good reason.
http://imgur.com/gallery/ah0ICsx
If you get shouted at for ignoring the safety announcements you got off lightly.
Please take a moment to think about your actions stop putting your self and others at risk needlessly.