Word-of-mouth leads in Austin - what worked for you?

A friend who works at a local manufacturer says there are openings not advertised online. I would rather hear the honest version than the polite one. One is a print shop, one is an accounting firm and one is a clinic. Should I visit in person?

Visiting in person worked for a trades job. For office jobs, email was better.

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.