Anubis
RefChat Addict
A very obvious and exaggerated shake of the head accompanied by a loud "No" is what I'd do (and have done).
ok I put that out there as i also have done it, however, with crowd and players noise, my ' no' sounded to the ref, as ' goal'
he later said only my non moving away from the goal line prevented him signalling goal
so from then, agree shake of head, but, from me, no shout.
bit same as on line, Ar should never shout ' onside' thro comms, its, ' offside' or nothing
disclaimer, other folk in other games may have found other methods beneficial