For every sale you miss because you're too enthusiastic, you will miss a hundred because you're not enthusiastic enough.
Zig ZiglarI don't care how much power, brilliance or energy you have, if you don't harness it and focus it on a specific target, and hold it there you're never going to accomplish as much as your ability warrants
Zig ZiglarWhen you are truly interested in other people, you will learn what they are interested in and if they have a need for your product. If they like you, and most people like folks who take an interest in them, they'll help you find people who do need what you have to sell, even if they don't.
Zig Ziglar