My brother used to drive a cab in Manhattan (NYC) and he was a NEW! born-again Christian. He became very good at witnessing and noticing how with different persons. He'd joke a lot too. I can't do this joking thing. I have my method just like you'll have yours.Thank you all for your insight.
I also encourage you to continue. If you didn't, how would you reply to God's calling??
What I tell persons makes them think. That's all you could do.
Remember this and don't get discouraged. (well, you already know it, but I'll post it anyway)
One plants
One waters
One grows
And one will get to see the results...