Communication begins long before you start to speak. You must think about what your audience needs, and about how you are going to meet those needs.
Cultivate Curiosity
Anyone can get up and present a product or service, but such presentations almost certainly lack impact and relevance with most consumers. You need to cultivate curiosity and focus on your audience rather than on yourself or your product.
Most importantly, you need to fight against complacency and getting set in your ways. Just because a presentation worked in one situation does not make it endlessly applicable to others.