This is excellent and frankly much needed in Christian circles. Here are some clear, simple guidelines on how two "blokes" should embrace one another. As they say, the modern world is a complex place for a man and some simple advice like this can certainly reduce our discomfort and confusion.
I think the only thing missing was the "backsides out" advise. While this is not always required in that it depends on the nature of the hug, it's generally safer.