People are arranged seated at tables facing each other. A whistle blows and a three minute networking session begins.
One person begins by talking about who they are; what they do; and what they are looking for. Then it is the other person's turn to do the same. The conversation can then turn to exploring any potential business opportunities between you.
The whistle blows again when three minutes has passed, one person remains seated while the other moves one place up the row and a new three minute meeting begins.