Welcome CrytoJesus, Preaching to JWs about Jesus and them preaching to you about having the "Truth" will probably result in frustration for both of you.
If you want to help JWs to critically think for themselves, you might have better luck engaging them in conversation at their propaganda carts by asking them simple questions like Billy the Ex-Bethelite did in the thread exJW Psychology 102--How to Ask a Question When Questions Aren't Allowed. If you can help JWs to critically think for themselves then they will be able to decide if believing in Jesus Christ or another religion is right for them.
Peace be with you and everyone, who you love,
Robert