One very great annoyance in open air gatherings is cigar smoke when blown directly in one's face or worse yet the smoke from a smouldering cigar. It is almost worthy of a study in air currents to discover why with plenty of space all around, a tiny column of smoke will make straight for the nostrils of the very one most nauseated by it!
Develop a mailing list. . . anyone who comes through your studio or meets you at art shows or anywhere. It's the power of permission-based marketing. Email your latest work to the list, every month.