If your nose is up in the air (snooty or snobbish) then to look at a lesser, you would have to look down your nose at them. Hence, looking down on someone or something.
to aspire to something means to look up to it as if it's your hero. to spire something is to look down on it as if you are it's hero.
it means they are looking at something or they are remembering something. if they look down to the left they are telling the truth, but if they look to the right and up they are telling the truth.
It basically means when you look down along something. Like 'letting your eyes scroll down along the page' Looking along something downwards basicaly.
Look at something softly
''down pat'' means to have something well perfected
When your teacher asks what something means to you, he or she doesn't mean for you to write down someone else's thoughts. The assignment was for you to look up the meaning of the terms and see what you think about each of them.
you mean what you mean
That they feel insecure or are lying about something. Also if the person has feelings for them (love), this can also make them feel uncomfortable. Another thing, when people look down they are guilty of something and cannot face it.
It could mean that you made a movement, and he noticed it. It could mean that the teacher just looked up for a second, and you were there. It could mean that he or she is a perv. but that is possible, but very unlikely. Try not to read into something that you may want to believe.
something is wrong with you
to look forward to something
If you mean then it could be something like: I'll walk down the aisle of the church. If you mean ill, then it could be something: The bride was feeling ill as she walked down the aisle.