The fact that you have weekly conversations is a big deal. Do not feel like you have to force anything. If you are able to converse with them on a regular basis, they will get out in their own time. Share with them what you are learning, the old "jehovah" calendar, the anti-disfellowshipping awake, the un story and all the other strange small topics that start to pick up steam after a while.
You cannot control what others do but do not allow them to shun you. Simple as that.
pbrow