Just went to a great talk by a wonderful artist, Novie Trump. She presented a wealth of info on how to be a professional in the arts -- everything from how to network and how to NOT wrap application CDs in 5,000 layers of bubble wrap and duct tape. The presentation was at artomatic; see Novie's beautiful work here.
Novie noted that "no matter how small the show is or what type of contact you have with a person, handle yourself professionally. It is a small, small world." Novie seems to set a great example with her grace and generosity.