Wow, there seems to be opinions from 2 directions. To clarify the scene,
This happen at a poolhall. I was standing approximately 5 - 6 feet away from the table. I was standing out of the opponent's line of sight, about 90 degrees away from his viewing angle. I was standing and leaned my cue against a table about 6 inches from me on my left side. I was not aggressively picking or leaning my cue. I did not say anything while doing it either. I saw that he had 2 balls lefts and leaned my cue down. He shot the 8 and got bad position. I then picked up my cue before he shot the 9 ball. Because the cue was right beside me and I was out of his line of sight, I did not think he would notice me picking up. He did not looked like he was bothered by it as well until after the end of the game.
I stand up during play because I sit all day in an office.
I have watched many youtube games and have seen Pro players picking up their cue while seated during an opponent's shot. They may be cleaning it or shaping the tip. I guess that is fine?
I guess I am really bothered by doing what could be a potential shark move. I have gambled many different characters and had people talk, move and performed obvious sharks moves. In my opinion, unless they are physically touching me, it makes me want to play better. Because I know, that they know, I am a better player and they need to resort to unscrupulous tactics to win.
It may not bother you, but it certainly bothered him. I agree with a comment made earlier, how did he know you did it if you were out of his line of sight? I played a guy once who would leave our table after a miss. When I missed, I had to wait for him to get back before the game would resume. Some of you guys will ask "how could that shark you if he wasn't even there?". Vowed that day to never play anyone who can't give me the same respect as I give them. If it's their shot, take a seat, watch, and be quiet. To each their own I guess.