In John 9 we meet a man who was blind from birth. Jesus mercifully gave him sight, but the man still knows little about Jesus - he doesn't even know what he looks like! When the self-righteous sceptics come looking to denounce Jesus there's not much he can say, but what he can share he does by way of his testimony: "Whether [Jesus] is a sinner or not, I don't know. One thing I do know. I was blind, but now I see!" (John 9:25)
Whether you know a lot or just a little about Jesus, how might you express your experience of Jesus?
Perhaps you could think of your life in two parts:
Before I met Jesus I thought / felt / believed ..
But now with Jesus I think / feel / believe ..
If there's time, share your simple testimony (in pairs). And why not pray for opportunities to share it with someone else :)