Dogs lick their private areas because it is the only way to clean themselves. Dogs want to be clean, but they cant use toilet paper. If they do not do this then they might get infections
Thats how dogs get to know each other.
Your dogs aren't gay. Dogs relate my smell and touch and, to an extent, grooming. What you're seeing is healthy pack behavior -- in this case grooming and scent. In your case it sounds like your dogs get along and they are cleaning each other and possibly covering up scent. If dogs are meeting for the first time, they will sniff and occasionally lick each other "private areas". This is how they get to know each other, it's a good sign that they will get along.
Dogs Like/sniff other dog butts to get information about the dog. It is a form of communitcating.
Other dogs butts
They bark at other dogs to communicate with them they are talking to each other
Alone
yes they do because its like us we can hear other humans on the t.v and dogs can hear other dogs.
Dogs clean their private parts because it's actually like giving themselves a bath, and it's a lot easier for them.
Dogs like to lick many things. Sometimes this includes different various human body parts including the face and other areas.
As friends, yes. Sometimes they do each other but its not very common..
Cause some dogs like other dogs. Even if it was wet or not probably the dog would still greet the other dog.
Chihuahuas are actually notorious for their love of their own breed: The Chihuahua. Chihuahuas will quite happily get along with another chihuahua but i dont think other breeds are allowed the same contempt.
Prairie dogs make a noise very like a bark. That is why they are called 'dogs'. In fact they are a type of ground squirrel and not related at all closely to dogs.