If it's a problem with talking to people and communication then one way to start would be to read some sales/communications books. --How to win friends and influence people by Dale Carnegie --How I raised myself from failure to success in selling by Frank Bettger

The more you talk to people the easier it gets. There's no magic pill. There are plenty of strategies and advice but the main thing is just to practice, and get out there and talk to people. It's a numbers game. It doesn't matter if you mess up or freeze up once or twice, in the long run it won't be that big a deal. I hope this helps.