[matt_the_bass]

Go to a trade show and find an invite to one of the trade show parties. There will be lots of sales people there with "sales person" personalities. Talk with them. They're usually good at talking so you should not need to feel stress to keep the conversation going. You might pick up some techniques.

PS it's usually easy to score a trade show party invite. Just ask at any friendly booths where the best party is that evening.