Having some previous experience in tutoring different languages, including Portuguese, Spanish, German and English for non-natives, I figured out the lessons must be student-oriented. I always incorporate the student's interests in the lessons, in order to make them more appealing and fun - if the student has a particular interest, I'll try to use material related to it. I also focus on the weaknesses that the student needs to improve. Homework and other self-practice material can also be made available - some students do not like to do homework or do not have time for it, so it is all depending on the student's preference. I also provide and suggest interesting material that the student can use and have fun with outside the class and still be in contact with the target language, such as songs, movies, tv series, books, etc.