What is appropriate attire at a seminar?

Athletic attire. Shorts, yoga pants, t-shirts, joggers, athletic polo shirts and tops are most appropriate. Most of the seminar will consist of hands-on practice on other attendees. Wear clothing which allows for ease of movement so that fellow attendees may easily palpate and practice protocols on you. Wear something you would normally work out in unless you wear a tie, speedo, jacket or coat, swimsuit, sports bra only, or biking shorts to work out.