To: Derech HaMelech-
Differences among our people are what make us a stong people. Noone wants the world to be exactly the same from person to person. In fact, your community should be glad to have someone like a BT in their community. Whereas you had Torah in your crib, this person had to actually find Torah in the world somewhere far from where she (or he in other peoples cases) were raised. This is a huge blessing. So if she has questions and wants to konw a minhag, be friendly and teach. But if your minhag makes no sense other than to your insular way of life, perhaps its not TORAH.