It can be loose-laid, staked, taped, or glued. It's very heavy on it's own, so most people will just un-roll and play. Ground stakes can help anchor into the ground; or if inside double-faced seaming tape can work as well. If gluing, typically you can get away with a bead of glue along the edges / seams. Liquid Nails or Henrys multi-purpose carpet adhesive works well. Just make sure your glue is urethane compatible.