I saw the show in previews, and it was a bit warmer, so this information may not still be true, but the barricade was the longest barricade I have ever seen outside a show. It's a big circle basically, and he goes around the entire circle. The show has the advantage that it can use Shubert Alley rather than worry about keeping a side walk clear. I would say that it's about 100 people at the front of the barricade. It's a lot of people.
And Cooper took a selfie with every person who wanted one (which seemed like every person at the front of the barricade). It seemed like a lot more people wanted selfies than signatures. I wouldn't expect any real conversation with the man, but he definitely spends his time out there with the fans.
"What was the name of that cheese that I like?"
"you can't run away forever...but there's nothing wrong with getting a good head start"
"well I hope and I pray, that maybe someday, you'll walk in the room with my heart"