This document provides etiquette guidelines for webinar presenters, co-presenters, and attendees. For presenters, it recommends being well-prepared, providing technical support, being efficient with time, making eye contact and using good body language. Co-presenters should be attentive, observe the chat and answer questions respectfully without trying to take over. Attendees are advised to check their software, mute their microphones, be respectful of others and keep questions on topic during Q&A sessions.