It looks like there are two schools of thought on this one. I just heard it from a principal in one of my interviews. Books like "First Days of School" states that you should welcome your students with a smile as they enter your classroom. Up to now, I still don't understand this saying. Of course, if you have worked in your school for quite some time, have a track record, and have gained the respect of the students, you can probably smile all day. What about those, like myself, who are just beginning their teaching careers? Some students may take advantage of your smiling demeanor. Is it not better for students to gain your respect or please you before you even smile? There is no arguing that gaining the students' respect requires a lot of things. What's your take on this one? Are there merits to this statement or none at all? If you were a new teacher, would you adhere to this dictum? Why not? An author even suggested to wear a different personality when you enter your classroom. Thanks in advance to all your inputs.