In my honest experience being with them, I think they were genuinely pleased with the people. We were blessed in having them come here to New York.
As for the videos, they didn't say it upfront it wasn't allowed so many actually did take video.
I would like to say I don't like to "shake and tell" but Zukki and Eripon stood out. Sakura's English is really good in person too :3
If you could tell by the hints, I got a ticket to do the handshake event but it was rather unorganized at times but can't complain

Well from my experience. Sakura, Duu, Maachan, daiishi, Harunan, I just said arigatou and they said it back to me
Zukki smiled when I said daisiki which actually made my heart flutter a bit.
Riho, Eripon (intimidating aura

), and Fukuchan I went the same thing but right before Sayu I had it in mind and said sotsugyo omedetou
That was pretty much the handshakes in general but they smiled so wonderfully for their fans around the world that came to NYC
Now I feel accomplished for doing this... Memories will last forever :3