Hello, I hope I can get some help. I started a hat for my son, to encourage and teach my daughter loom knitting. He does not want a poof on top so I want to make it less bulky. I have read a little on decrease, but am unsure when to start, which technique, and when to stop and cast off. I am using a Martha Stewart Square loom with 72 pegs. I am knitting one "round" and purling the next. Please keep any help simple and remember I barely know how to spell purl let alone anything else! Thanks!!!