First Contact with a Broker: How are you framing it?

When you find a listing you're interested in, how are you expressing interest? There seems to be more information out there about how to read a CIM, or evaluate cashflow than there is about how to make first contact with a broker. To be honest, I've been winging it and trying things from explaining my background and objectives to just asking for financials. So far there doesn't seem to be much difference in the responses I get (almost always helpful with an attached NDA or request for proof of funds).

My question to both searchers and brokers is, what have you appreciated or seen work well in a first contact message when reaching out on a new listing?