2nd Class -- R2 duties

[Scrapper1]

Ok, so I had my second class last night. They put us on the floor with a couple low-level teams and had us practice blowing the whistle and giving signals. Then we reffed from each position for a few minutes each.

Starting out, I'm probably going to be doing a lot of lower level stuff. And last night, it seemed like there was NOTHING for the R2 to do, except signal in subs and time-outs. You stand there and move from side to side, but the skill level was low enough that there weren't a lot of rallies and nothing really for the R2 to look at.

So. . . what is the R2 looking at/for during play?