Getting noticed, as well as gaining exposure when selling your art

I recently read of an excellent idea in regards to getting some exposure for your art.  When you sell a piece of art, instead of taking it to the recipient's home or business (or having the buyer come to you to pick it up), arrange to meet the recipient in a public location, where many people will witness the transaction.  Showing the work to the recipient, discussing the piece a little, having the art/payment exchange hands all in the presence of a lot of people is bound to generate attention, and may very well cause curious people to approach you.  So, it's a good idea to have business cards, and a portfolio with you as well in case you generate this type of interest!