with "flag facts," i'm veronique. >> they can't talk, but they can make themselves understood if you know what to look for. brandon continues our series on dog body language. >> can you tell if your dog is loving, tolerating, or hating something? the clues are in the dog's body language. to help us learn how to speak dog, we welcome back robin bennett and susan briggs the dog gurus. hi. >> hi. >> hi. it's great to be with you. >> susan, where do we start? >> well, let's start with the mouth. is the mouth open, which means usually the dog is loving the interactions, or is the mouth closed, which is your first clue that they may be tolerating or moving towards hating an encounter. the other thing is, you know when we get uncomfortable, we kind of have signs that we're stressed a little bit. well, so do dogs. so they may lick their lips or they may even yawn. those are clues that the dog may just be tolerating the situation that they're in right now. >> robin, how about when dogs jump on you? does that just mean he's happy to see you? >> well, if you just came home from school, it might