how to read dogs body language

Unfortunately, if you're watching Cesar, you're going to have a very hard time learning dog body language. CM does not have a good understanding of the subject and frequently misinterprets calming signals and fear signals as aggression and "dominance".

There are people with far better understanding of dogs, like Karen Pryor, Jean Donaldson, Ian Dunbar, to name a few, who would help you out more.

You can't really tell if a dog was taken early. Dogs taken early tend to have problems with bite inhibition and proper manners with other dogs, but so do a lot of dogs.

Are you just curious?