As technology evolves, it can be challenging to determine what is considered polite behavior and what is rude or inconsiderate. Find out how to navigate the common courtesies of technology with the Technology Manners Poster Set. The Cellphone Courtesies and Text Message 101 Poster highlights how, where and when to use your phone in public as well as basic pointers for sending text messages. The Social Media Civility Checklist Poster highlights common courtesies about posting and tagging, app and group invitations, and how often you post. 18” x 24” Laminated.