I have some experience teaching Spanish to another person and I am yet to have experience teaching English to another person. My lessons consist of a 60 to 90 minute basis of touching upon different grammar and themes. I will also make mention of culture since I believe it is important background for a language. After each lesson, I will also touch upon things from past lessons to be sure that the students have learned.
Since I'm an undergraduate student myself, I would not like for the dynamic to be easygoing and lighthearted.