Be the Last One to Leave

Attending a ½ day seminar, or an evening networking event-with-a-speaker is a chance to make new contacts.

You never know who will make a good contact (excepting the guy wearing a track suit - probably not a good bet), but since you never know who will be the best contact, it follows that you should make serious contact (a 10-minute conversation) with as many people as possible.

Your last chance to make a contact, and hence your last chance to make a good contact, is to make contact with the second-last person in the room, you being the last.

Leaving any time before the last person means you've missed a chance to make a new contact.

And that contact might be the best contact of the night, the week, the month, the year.