Hi,

Blue tongues don't necessarily mean Chow. They could have Chow in them but its not guaranteed just because of the blue tongue.

As far as your question, I would get them into puppy classes or basic obedience for further socialization. Since Chows are so protective by nature, its very important to get them highly socialized. It sounds like its not a huge problem right now but it could escalate as she grows. Take her out in public and get her exposed to as many different types of people as possible.

Good luck. I love the names by the way. Rayne is my middle name