This could be a list of several especially if you specialise in creating a complicated Mutt. Keep your Mutt simple and natural, and in most cases life will be a ball of fun. A few things are worth recording just so you know what you should do and why. Whether you do them is up to you. You have to live with your Mutt - so think about it!

Eye balling
Male Mutts go in for a thing called "Eye Balling". What happens is two males sitting in close proximity start to stare at each other. (Bit like people in a café or restaurant who stare at each other) One dog looks at the other and thinks aloud "what a pratt". The other Mutt says, "I heard that! You creep!" and so on. At this point the "observant" owners recognising potential trouble brewing turn their respective Mutts' heads in different directions to "break" the eye contact.