First and foremost, I share my contact details all over the place, and especially within the book itself (e.g., I’m rob@robfitz.com or @robfitz on Twitter). Second, I respond. Not always as quickly as I would like (sorry!), but I do try to get there eventually. And lastly, I keep an occasional eye on social media for mentions of my books, jumping into the conversation when it feels appropriate. That’s it. And it has led to more opportunities than I can count.