From London:

Aspirants are requested not to go through the darshan line.

All shoes should be left under your seat during darshan. Please do not carry any purses or clothing in the line. Everyone is requested to go through the line once only.

If you have never received Holy Breath, please place your right hand to your right ear as you approach Guru Maharaj Ji. HOLY BREATH IS GIVEN BY THE PERFECT MASTER WHEN HE FORMALLY ACCEPTS YOU AS HIS DEVOTEE, AND YOU SHOULD NOT ASK FOR IT A SECOND TIME.

And from Kissimmee:

If Guru Maharaj Ji gives darshan people are asked to remove their shoes before entering the darshan line but everyone must wear socks. No bare feet will be permitted, for health reasons.

Anyone who has not received Holy Breath before may ask for it by placing their right hand to their right ear as they approach Guru Maharaji Ji.

Premies are asked not to wait until they are directly in front of Guru Maharaj Ji before doing this because Guru Maharaj Ji will not be able to see they are asking for Holy Breath. Since this is a continually recurring situation, premies who know someone who will be asking for Holy Breath might take the time to explain this to make sure it is understood.

I will also be adding this to the Wikipedia article on Rawat in a very neutral point of view manner.