If he really does only have one minute, I hope I'm allowed the liberty of 'Cliff Noting' Sue's great suggestion:
Custom Framing is more than just slapping a border of color around a picture and putting it in a frame, it is the opportunity to take your treasured memories and turn them into stories that you can hand down to your grandchildren. Proper framing turns a wall of photos into a wall of conversations. It is also a housing which, if done with quality materials, protects your artwork from dirt, dust, acids, and even bugs. If you feel something is worth being hung on the wall, then it is worth protecting it with proper framing.
Just that might still be too much, though. With only one minute, the KISS method surely is a wise approach. The gist of it should
be that you offer a wide range of custom framing options, have many happy clients, and that you're willing to help people find the
right solutions for their framing needs. He probably won't have time to explain any props, but if he holds up a nicely framed photo
while he talks, without even explaining it, should be enough. Seeming friendly, concise and approachable are the main things.
Bear in mind that his audience might include folks who have no interest in framing heirlooms but do want to frame decorative
art for their office walls. They'll want to feel comfortable approaching him on this, and showing only a tricked out, 'everything
goes' frame job, with all the bells and whistles, could cause someone to assume their project isn't fancy enough for you.