Before the event think about the characteristic of the people you would most likely connect with AND what you hope to get out of allocating time to an event. At the event try to introduce yourself to at least 3 people with the goal of making a real connection with one of them.
At what point in your interactions did you decide whether a real connection could be made? Do you think the people you met can help you achieve your goals? How will you change your introduction strategy at your next event, (e.g decide who and who not to have a conversation with)?