But Graeme (not yet anyway GS) is not officiating UEFA matches where he has use of VAR so learning these "communication techniques" is unlikely to help him in his games. He is allowed his opinion on how it looks, as are you, and of course you are able to fill us in with the knowledge from upon high but do you both really need to bicker over this?The difference being I am aware of UEFA's instructions re this and, you are not.
So, in order for you to have them confirmed by someone other than an internet random, and overall, to ensure you are officiating in the manner expected, or at least, is uniform, its you that could do with the extra guidance and advice, from the very top level, so, you are in no doubt as to its rectitude.