Analysis of Interview

First, I think I said too much "Um" at the beginning. Fortunately I corrected the problem as I discovered it. Second, I found that I didn't look at interviwers all the time, and I looked up some times. I can't believe that I have that unpretty custome. It just looks like I was giving interviews a supercilious look(Actually I was just thinking about the things I should tell next). Third, I said same wrong words because of nervous, and I couldn't understand the word that appeared in a surprise question. I think I should remember more words.