Help with protecol

[gr8fuldiver]

Hello fellow officials. I am new to volleyball, and have a question: When I am R-2, where do I stand to mirror the R-1's signal. IOW, if team A loses the point, do I go to their side to mirror? Or do I go to the side who won the point for the mirror? I believe it should be on the side of the team that lost the point because that is the side I'll be on when the serve takes place. Problem is, I've been told BOTH sides are where I should be. My assigner said to go on the side of the winner of the point, but others tell me to go to the loser's side. I get corrected (and sometimes harshly) no matter where I go. The pres. of our org. said to "Look it up in the officials manual." I have looked but cannot find where it says what side to stand on to mirror. Please help me with this (and tell me where to find the answer) so I will do it right. Thanks in advance.