When looking for networking opportunities, you'll find many different styles. Some are organized, while others are not.
Networking events can be anything from sit down dinners and conversations to parties where it's just appetizers and drinks ordered at a bar.
What you have to know is what style works for you!
Do you like networking in the masses? Some people like large crowds to hand their business cards to and follow up for one on one interaction.
Others like smaller groups, where they can feel connected and then build one on one business relationships.
Both styles work. You just have to find which one works best for you.