Word-of-mouth leads in Spokane

A friend who works at a local manufacturer says there are openings not advertised online. I do not usually post, so bear with me. One is a print shop, one is an accounting firm and one is a clinic. What do you write in a cold email?

Thanks for writing this out. I went through something close to it 10 months ago, and it got easier once I kept a simple log of every call and form.