I've had to hold a presentation about the cause and effects of diabetes. This was not a powerpoint presentation, but rather somewhat like a seminar. I have no trouble remembering the order of things I have to address, but there are many times I had to pause due to a loss of words. I think this happens because I've gone over the talk so much in my head during preparation that I try to replicate the exact words and phrases when it came to the real thing. I have no trouble making eye contact, showing positive body language, etc. What do you guys think my problem is and how much reviewing do you do prior to giving presentations? And any tips will be appreciated.