I am an associate lecturer and it's my second term with the undergraduate students.
I noticed some of my students laugh when I teach. It's the most annoying thing I have ever felt in my academic life so far. I always think, why some laugh while others appreciate my way of teaching? It's very puzzling. At the end of my first trimester I received a very positive feedback from the majority of students. But just those couple of giggling students ruin my whole confidence.
I don't speak funny and I look average too but why why that happens to me?
Is it normal in academia? Did this happen to anyone else? And how I can deal with them?