We attend conferences/events usually for two main reasons, to learn new processes and best practices, and to network.  Since the success of your career and business will usually depend on your network and who you know, networking is vital.  Here are some tips:

1. It is better to make 5 or 10 quality contacts at a conference than to simply give your card to 100 people who probably won't remember you.

2. Trade shows are not conferences, they are sales events.  It is possible, but difficult, to meet people at an exhibit hall with 10,000 people.  Exhibit halls are great for gathering information on products and services, not so great for networking.  Your best bet is smaller conferences and summits.

3. Most conferences have lunches, breaks and receptions.  Use this time to meet your fellow attendees.  Carry a lot of business cards, and don't be shy.  Remember that most everyone at the event wants to expand their circle of associates.  Networking is ranked number 2 (after learning), as the reason most people attend conferences.

4. At a two day event your goal should be to meet about 5 people a day, that you spend at least 10 minutes with.

5. Remember to follow up.  After the conference send your new contacts an email or better yet a note via postal mail.