Choosing too many behaviors at once will make this less effective. To use this behavior bingo board, you will want to choose one behavior that you find your students are having a tough time with.
At any rate, this behavior bingo freebie is the perfect way to encourage those positive behaviors and give your students something fun to work towards. Other times this happens before or after a long break or at the end of the year.
I remember when my students were having a tough time staying focused and following classroom rules! Sometimes this happens at the beginning of the year as everyone gets acquainted with the new routine and new people.