To network intentionally, you must first determine why you are networking.
Most likely, you are a job seeker.
Once you have determined why you are networking, you must prepare to network.
How will you introduce yourself to someone at a networking event? Create an introduction that is short and sweet. Then practice your introduction until it feels natural. Be certain to smile.
Now, take an honest inventory of who you are and what you want. What are your skills? What experience do you have? What do you value? What career interests you? Be specific.
You are almost ready to network.