@cyniconic,
A Conservative Christian is as a rule very tied up in their beliefes and you can hardly change nor make them to understand your point of view.
As a rule a discussion about religion can be very interesting and give you a good insight in theology.
Only if the people are open minded, have a certain knowledge and do not condemn anyone. Also knowledge about history is good.
If your family and some of your friends are consercative Christians I would not even hint to them about how you stand. If they are uncomfortable with you it is their problem.
If they start with that old singsong about you are not a good Christian - IGNORE IT.
Or tell them that - in case your are baptized - "As baptized I will always remain Christian - no matter what. If I am good person it is up to others to judge"