The Four in Hand is one of the most common, if not the most common, knots out there. It is quick to tie and holds well. The knot ends up being long and narrow, but asymmetrical, making it unfit for truly formal affairs. This is probably the best knot to wear loose with an untucked shirt and jeans, if that is the look you are going for. Just for fun I demonstrate how to tie this knot in a unique way, off the neck. It might take a while to learn but once you know it you will enjoy a lifetime of impressing your friends! If you are looking for a more exocitc knots check out your options. Note, this video is reflected for ease of use.