Word-of-mouth leads in Columbus, security officer here

I asked around at a community meeting and got three leads. It has been weighing on me all week. One is a print shop, one is an accounting firm and one is a clinic. Should I visit in person?

A short email with two sentences about what you can do and your résumé attached worked for me. I followed up after a week.

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