Obviously you would not wear a shirt and tie to do massage, but image is important. Our profession has suffered from a poor image in the past. Keep your work area orderly and presentable. It is a good idea to have a sign-up table and put all of the travel bags, coats, miscellaneous personal items, and your supplies under the table. Massage chairs are peculiar-looking devices.
People are naturally curious about their design and function.
After you have set up and have your work area arranged and neat, put one of your fellow therapists into the chair and do some work on them. People will stop to watch you. The answer is usually no. What we have learned in this donation scenario is that people are much more generous after your magic fingers do their work. It is best to make that statement as casual as possible.