Linesmen - do you signal your foul?

[ABoselli]

If I'm the R, I can't tell from my angle what side of the NZ the flag is on unless he really heaved it to one side or the other. Better to just come in and tell me.

If I'm on the wing, I usually point with my hand held against my stomach which side I had across first. Not so much for the R but for the other wing if we both threw on a play where both teams were into the NZ fairly closely. Coaches can't see and the players rarely pick up on it.