Genuinely respect your students and show it:
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You are in the classroom for the benefit of the students, not vice-versa.
Your ability to help them understand concepts that they currently do not
understand is enhanced enormously if you connect with them.  No one wants 
to be treated like a dummy or talked down to.  Connecting means giving them 
credit for having a brain, willing to use it and caring enough to do what it 
takes to get it.  AND, conveying that -- not verbally, but through your body 
language.  That means respecting them.