Ask HN: How do you manage social media?

It has occurred to me that almost every programmer has a presence on Twitter. I've tried using Twitter, and I just find it as a time sink (not unlike browsing Hacker News). How do people manage to engage their followers on Twitter while working a full-time job and contributing to dozens of open source projects and having a family and, and...?

I always want to spend most of my spare time either programming or reading, and I still feel like I don't have enough time for those things.