Friendship bracelets are usually made with embroidery floss, but the knotting technique can be applied to any string or thin cord.
The first video, by Kat Hallinan, demonstrates the standard bracelet-knotting pattern, in a multicolored chevron pattern.
The second video, by laurDIY, shows the fishtail plaiting method.
Friendship bracelets are cute and easy gifts (hence the name), and provide a solid foundation for bracelet layering. Bring on the arm party!