My professor  came up to me. While he was talking I was navigating through my laptop.
Were you busy working on something else at the time?
No, my mom taught me not to pay attention when someone talk to me face to face.
Its pretty mean to ignore someone while they speak to you. If you refuse to listen to someone as they speak you are going to miss possibly valuable information. This is going to severley limit your knowledge base.
I'm going to stop talking to my mom then. She has a stupid mentality.
If she gives out advice like that then yea, I agree that you should stop following it. Sometimes, even parents don't know any better.