Tip 2: Don't eat the donuts. We know it's tempting, but the conference room is not a donut shop. In fact, it's not even a shop. It's a conference room. With chairs and tables and a whiteboard that's been covered in last week's meeting notes. So, please, for the love of all things productive, don't eat the donuts.
Also, if you're caught eating the donuts, your colleagues will judge you. Trust us, it's not worth it.
Next tip: Tip 3 - Don't Talk About Your Vacation Plans During the Meeting