Thank you all.
Lobster, as I said in my original post, I highly doubt I'll have the chance to meet him, but I certainly want to be prepared and know what to do if the occasion should arise, so I thought I'd ask in case others have seen him and had the chance to meet him. One can hope, but I'm not counting on it.
Seishin, you gave me a giggle with the "no short shorts, bikini tops" comment. I don't wear those things to the beach, never mind to see the Dalai Lama, LOL! I imagine whatever I choose will be appropriate, I just didn't know if there were any specific no-no's, things that were bad etiquette (other than bikini tops, ha ha, can you imagine???)
Thanks for the input, I will ask about photos when I arrive and take the advice of Seishin who said "do as others do". Seems reasonable enough.
I am so thrilled to be able to see him speak. This has been on my bucket list for a couple decades now, I'm just tickled pink.