When you have a noise or other distraction occur during your presentation, mention it (so people are aware you know about it) and then move on with your presentation. For example, "I know it's a little cold in here, someone is talking to the building about it and they will do what they can. For right now, bundle up and the temperature issue will be solved shortly.")
Tim Wilson
Professional Speech Coach
Free speaking tips at: http://speakingquicktips.blogspot.com
