I remember a few years ago now, at work I walked up to two work mates and for some reason one of them turned and said, "Have you EVER heard Brendan swear?" The other shook his head and said, "Nah I haven't." Only one of them at the time knew I was a Christian because when I first started he showed me a pornographic picture on his phone and I told him how God had helped me with that addiction but it was still a weakness. I was able to tell them why I didn't swear.
Another instance a couple years back I was chosen to go on a work trip with managers and general managers, after a days work we would all go to a bar in our hotel, it was expenses paid so they surely took advantage of that. The first night we all sat down and asked if I wanted a beer or a bourbon and I said, "no, thanks I don't drink." They all asked why, and I told them.
I find I don't have to go out of my way much to witness the gospel to people, especially those immediate around me. I pray that I'm bolder as I have a great sense of fear and rejection but God strengthens and usually gives the right words. I've even had a Muslim at work ask me to pray for them..amazing! None of this is to boast, for I am the least capable, slow of speech and of tongue..very much so. I have no strength of my own to rely on regarding evangelism. But opportunities are certainly there, we just need to take them as they arise. We may not see salvations on the spot, but seeds are certainly planted as we speak and they see our conduct.