This book looks helpful. Finally a book that is more concerned with counting conversations than conversions. Here is a blurb:

What if…
·you didn’t have to make a speech in order to “witness”?
·you could use everyday experiences to nudge others closer to Jesus?
·the things you’re already doing counted as evangelism?

Evangelism can be as normal as asking great questions and paying attention to the people Jesus misses most. It involves doing things you already do, but with a little more intentionality. Just by being yourself and becoming unusually interested in others, you can discover that people will ask you about Jesus.