In school I used to find that a lot of teachers talked to the class while looking at me for largish periods of time. I think it was because I kept eye-contact w

In school I used to find that a lot of teachers talked to the class while looking at me for largish periods of time. I think it was because I kept eye-contact with the teacher a lot (or more than others in the class). Not that I was a 'goody two shoes' (quite the reverse) but I did remain attentive and focused on the teacher's face (and eyes).