To chat or not to chat.....

The madam has a wonderfully outgoing personality - she very rarely has any sort of fear of anyone or anything. When I was pregnant I read in somewhere that the majority of fear is a 'learned response' and I have tried pretty hard to make sure she is fearless. She has always been a bit of a mimic but now she seems to be going through a major 'copy cat' phase. My mother in law is scared of dogs so when she is around the madam is scared of dogs, the Mr loves sandwiches so when he is around that is all she will eat and so on.....

Anyway

Where I am going with this is I like to talk. Yes I am the weird Chickie that smiles, says hello and ends up having in depth conversations with random people. I have met some fabulous people that way and had some very interesting experiences. I don't know why I do it as technically I am not really known for that much talking but it is just what I do. A friend of mine had quite the freak out at me the other day for it - she feels like I am teaching the madam that it is okay just to talk to anyone and this will therefore lead to her talking to strangers and thus her inevitable abduction. I actually thought the opposite - that it would teach her not to judge others based on appearance and to feel comfortable if in a dire situation to ask anyone for help.

So my question (cause you know how I love a good question!) is how do you teach your kids to be wary of people but to not judge, be accepting and friendly as well? Is 'stranger danger' still appropriate or is there another way?