We make ourselves ready to share the gospel when asked. Then share what you have written with a friend who can give feedback. The reason for this is that you haven't applied yourself to the task by searching the Scriptures and learning how Jesus and the apostles shared the message of the kingdom. I am willing to spend time with anyone who wants to develop a way of sharing the gospel of Christ with those who ask. On the other hand we will never really be ready.
Every situation is different.
No formulaic expression is right for all circumstances. We must trust the Lord to give us the right words at the right time. We make ourselves willing to be considered fools, to be stereotyped and joked about. As people reject God and the message of His saving purpose in Christ, they may well reject us who associate with Christ. Some relationships we have nurtured along will not mature or develop as hoped.