A GOOD THING TO DO WHEN YOU HAVE A COLD
Step 1: Call a meeting with people you don't know.
Step 2: Shake hands with each of them in a firm but friendly fashion as you introduce yourself.
Step 3: Sit down, and announce that you are leaving the door open because you "have this terrible cold" and you need the air to circulate.
Additional Steps (recommended):
Blow your nose frequently throughout the meeting.
Be sure there are no breaks or pauses in the flow of the meeting, so as not to give anyone the opportunity to a) visit the bathroom to wash their hands or b) dig out the germ-killing hand stuff in their purse.
When they tell you a week later they are unable to attend the follow-up meeting because they have a cold, give them advice about which treatments have worked the best for you because, coincidentally, you are just getting over a cold.