Hi all, this is my first post and I'm hopeful that someone will be able to give me some direction. I'm new to sewing (made only jammie pants for my kids) and decided to try their halloween costumes. My problem is that I have no idea how to do sleeves! I have patterns and I'm just having a heck of a time trying to pin the sleeves properly to the arm holes, can anyone tell me (in terms a kid could understand, preferably
) how to get this right? Thanks so much.