From MSN.com, comes this summary of “Ten Worst Things To Do in a Meeting.” Among the excellent tips (remember - these are the things you don’t want to do!):

1. Show Up Late.
Nothing says “I’m disorganized” like walking into a meeting already in progress. Arriving a few minutes early not only demonstrates that you respect your colleagues’ time, but guarantees you get a good seat as well.

3. Monopolize the Conversation.
When discussion ensues, it’s protocol to let more senior figures contribute first. Once they’ve said their piece, concisely make your points. Don’t drone on — or feel compelled to speak at all if you don’t have anything purposeful to say. As the old adage goes, “Better to be thought a fool, than speak and remove all doubt.”

6. Get Intimidated.
Unfortunately, some of your co-workers may view meetings as a battleground and themselves as verbal gladiators, sparring for the boss’ favor. If you become the victim of a put-down or accusation, calmly defend yourself. If you need to buy time to think, do so with a question that will make your attacker accountable. For example: “Andrew, when did you start thinking I don’t care about our sales results?”

7. Chew Gum.
The smacking, popping, cracking and cow-like chewing are annoying. Plus, it’s rude and unprofessional. ‘Nuff said.

8. Keep Your Cell Phone On.
You turn it off in restaurants and at the movies. Turn it off for your meeting. A ringing phone interrupts the presenter and distracts the audience. And whatever you do, never take a call in the middle of a meeting.