There are two main ways to drape a throw blanket over a couch: you can either fold it in half or leave it unfolded. If you choose to fold the blanket, ensure the fold is centered so that the ends hang evenly over each side of the couch. You can tuck the ends underneath the couch cushions or let them hang loose. If you prefer an unfolded look, simply drape the throw blanket over one side of the couch and let it fall onto the seat cushions. You can also experiment with patterns and colors to create a unique look.