Because Christ is our life we should easily be able to talk about Him with others. I think that training and preaching are part of the problem. Churches give expectations and instruction about something that should be natural. People who want to share Christ with others are stricken with fear and burdened with pressure because of the "standards" they feel like they need to live up to.
Talking about God should just be a natural talking
just like you would naturally talk about sports. Imagine if someone
came along and said to you that you have to talk about sports "just
so" and you have to learn and include these certain facts and questions
into the conversation. Talking about sports becomes a performance
that you can either succeed or fail at depending on if you can transfer your love
of sports to the other person. It is no longer fun, spontaneous, and
natural because of the standards.