There are a number of ways to hang curtains depending on the style of window you have. Generally speaking, you’ll either have a drilled-in curtain rod holder or a twisted tension curtain rod. When hanging curtains on a rod, you’ll either slide the rod through the rod pocket at the top of the curtain, or thread the rod through grommets at the top of the curtains. If you’re using a tension rod, simply place the rod back in place (as high in the window as possible) and twist it into place after the curtain has been hung. Drilled-in curtain rods can simply be placed back on the curtain rod holders once the curtain has been hung on the rod.