I have 15 years' experience in software development and program application, with an emphasis on training and troubleshooting. I've won two 'Tekkie' design awards, managed a staff of 30, and written several articles on accounting software for Technology Today. Here's my resume. It may be a canned introduction, but make it as genuine as possible. Be sure you smile when you say it.
Eye contact is even better.
Remember, your goal is to go home with a second interview. If you're genuinely interested in a company, let the company representative know. Ask him or her what you need to do to schedule a more in-depth meeting. If, despite your best efforts, you don't get that second interview, don't give up. Send a thank you note immediately.