Be Aware of your Mic
Recently, I attended a presentation evening, where a number of speakers were given 20 minutes to talk on any subject they pleased. The presentations given were excellent, but there was a recurring, annoying habit by most of the speakers.
The microphones used that day were lapel microphones. These are microphones that are attached to the lapel or shirt of the person speaking. They are excellent microphones as the audience cannot see them, but there is a problem.
The speaker often forgets that they are wearing them and keeps touching them during the presentation. The noise this touching creates is horrible and incredibly distracting to the audience.
So, if you are presenting and have to wear a lapel microphone, make sure that you keep your hands and arms away from them, or at least make sure that they are placed in an area that you will not be touching.