Build a relationship first, then pitch your idea. It is important to build a relationship with potential investors/prospects before you pitch to them.
A business pitch is a presentation by one or more people to an investor or group of investors, though it can also be an email, letter, DM, or even an impromptu conversation. The goal of a business pitch is generally to secure the resources and funding necessary to move forward with a business plan or to continue with an already established business or venture.

Why is it important to build a relationship with potential investors/prospects before you pitch to them?
It shows you are human. We’re social creatures, and humans