At the end of every show they do

At the end of every show they do (which is at least 5 per week) they literally run out of the doors ahead of everyone else so that they can personally shake everyone's hand and thank them for coming. They'll sign whatever you want for free, talk to you, and take pictures. They've been doing this for over 20 years and always talk about how appreciative they are of their fans. I haven't met them on the street, and it is somewhat anecdotal, but I hear they are exactly as approachable outside their shows, too, and will make time to chat/sign things as well.