I'd say that confidence is one of those difficult things to pinpoint when it comes to a sales pitch, because you can't really say exactly what you need to do in order to act confident. Being arrogant isn't always the same as being confident in what you're doing, and you can't always rehearse confidence, because a lot of it is going to deal with how you happen to act in any given moment.

So what can you do? The best bet is to be sure that you're confident in what you're doing and what you know, and from there you'll naturally have a strong confidence when actually selling your product.

In order to develop this confidence be sure that you study up on and research everything you can about your company. No one wants to be asked a question they can't figure out an answer to. It kills confidence and it harms your chances of getting a sale, especially if it's a question you really should know the answer to.

Remember too that even if the customer doesn't really notice or care that much that you don't know a certain detail, it will still always impress them more if you do know all of these things. Who doesn't like to be able to get every answer they want right there on the spot?

I would also make sure that whatever business cards you hand out are top notch as well. While a boring business card won't necessarily hurt a person's confidence, if you have a nice custom business card to pull out that you just know is going to garner attention and interest, isn't it that much easier to develop your confidence?

I'd say that the business card is particularly helpful because it can add a nice end to your conversation. The strong custom business card acts as a truly confidence end to your interaction with the person. You can feel confidence because you know your card will make a splash, and the person walks away with that image of confidence in their mind.

The trouble with confidence often comes from the fact that you don't want to over do it and it isn't that easy to just say you're going to be confident. That's why strong preparation and strong knowledge of your area will be the only real way I can think of to make sure that you can almost plan out your confidence.

Just remember that how you say something can sometimes be just as important as what you have to say. A confident demeanor shows people that you know what you're talking about and that they can trust you with their business.