How Much Should I Prepare to Meet an Investor?

Expect to spend at least a few weeks preparing to visit a sophisticated investor. Otherwise, you are dead before you even begin. Without the work, you might just as well climb into a coffin, hand a stake to the investor and said, “Drive it in, please.”
Your business plan is much like a resume and it’s the ticket that will get you to the next stage: a face-to-face meeting. Attracting money to your business will be easier if you show your vision of the business and how you plan to execute it. You can make yourself far more attractive to investors if you have a merger possibility on the radar that you can name.
“It's the people, not the product, that investors are most interested in,” says Ilske Treurnicht, MArs. “And first impressions are important. Be active and interested without being arrogant. A banking or VC relationship typically lasts four to eight years, so investors tend to look for people they like and believe they'll get along with. Also, they do want people who are prepared.”
"How people present themselves to investors says very loudly how that business owner presents their product to their customers.