Deliberate, focused, generous, confident, thoughtful, these are all good things. Being pushy isn't.
Imagine you had a check for $100,000 made out to someone else. Someone you don't know but can reach out to. How hard would it be for you to cajole this person to take the check from you and cash it?
We call someone pushy when they are trying harder for forward motion than we are. We call them pushy when they have more at stake, or more to gain, than we think we do.
It's easy to rationalize your pushiness, imagining that the other person really wants to do this project. And it's just as easy to minimize the value you add, hiding in a corner instead of bringing your value forward.
Pushiness is in the eye of the beholder. Generosity requires that we be aware of how the other person is feeling about the forward motion we're trying to make.