What we’re all about is suggesting an effective way to communicate with your colleagues about the most important things in life. We have stressed the importance of locating people in their life’s journey and understanding where they’re headed from there. We encouraged you to be open in these conversations to discuss personal things especially IF you can reach an informal (or on rare occasions a formal) agreement to do so. Some of those conversations can and will get to the issues of the gospel and what that means, but 
we do not wish to be overly manipulative or compulsive in so doing. We’ve provided resources to help you discern their take on the gospel and “handle” (if that’s a good word) their objections in a non-manipulative way.
If and when you reach that point where it’s okay to discuss these things in a fair and fluid way sometimes you may find yourself dialoguing with someone who by their words and body language indicate they’re interested in personally following Christ. Then what do you do?
Possibly you can offer an invitation to do so.
The term ‘invitation’ is a term intended to apply to two dimensions of the same reality: 1) in one sense it is intended to define a period in the conversation where it appropriate to offer an invitation (yet to be defined) to repent - turn from self to God - and embrace a grace-motivated life of following Jesus Christ; 2) and in another sense it is intended to define a period in the conversation where the person who does repent and embrace a life of following Christ begins(and understands they are beginning) their new life in Christ with the intention of being a follower for the rest of their life.
We will be analyzing various ways this invitation has been offered and submitting to your approval a way to do that we think is tactful and can be done with integrity. In substance, however, we would want to make the issues in the preceding paragraph clear because it’s too easy and too often the case invitation is understood only as the first part of the two dimensions.