Continue following up with hiring managers. Your work is not done once the interview is complete or the thank-you note sent.
Following up with the hiring manager regularly shows your interest and enthusiasm for the job. The key is doing so in a way that is professional while not making you sound pesky or needy.
What you can do: Connect with them on LinkedIn and like a post and comment on a post. Follow them on Twitter. Find something from your interview that you can follow up on. Are they a member of a professional organization that you can join? Did you ask?? What blogs/podcasts do they follow? Make those your new favorite. Send the person a new book from one of those thought leaders that they follow.