This document provides dos and don'ts for teaching English as a second language. It recommends that teachers model skills and activities for students, wait a few seconds after asking a question before calling on someone to respond, regularly check that students understand lessons by having them give thumbs up/down feedback, and not ban students from using their native language, as this does not promote a positive learning environment. Teachers are advised not to just rely on textbooks or simply ask "are there any questions?" after lessons.