No.
Study the night before, have someone quiz you the night before, and PAY ATTENTION IN CLASS
Of course it's normal. Everyone thinks about something or someone before falling asleep, it would be impossible not to do so.
It usually just means you were thinking about the person before you went to sleep.
Yes you can. You can think about thinking or think about something before thinking about another thing. Thinking before thinking.
That has happened to me before and I know why. You are having dreams about him because he is thinking about you. I learned that whenever you have a dream about someone that means that that person is thinking about you.
It could be that or probably that is what your conscience was thinking about before going to sleep, which made you dream of him/her.
A flippant answer could be that you drank too much the night before. More probably this is the thinking someone is walking over your grave, that someone is acting against you in some way.
if you dream about someone it means they were thinking about you before they went to sleep (this was proven by scientists)
Thy look at u after or before they seem to have spaced out,or they sneak peeks at u all the time
Attention Deficit Disorder makes it hard for someone to focus on one thing. Before you take in what is in front of you, your "attention" is diverted to something else. Some people claim it is a gift.
That depends on what you want to say once you have her attention. Excuse me, please.... is a good start for any conversation with someone to whom you haven't spoken before.