Lay the sand down in the desired area for the path. The best way to lay a path is to dig a trench where you want the path to be; the trench provides support on either side of the path material and helps keep it in place. If your path is just sand, fill the trench to the top with sand. If you are planning to lay brick on top, just put a few inches of sand into the trench.
Sprinkle the sand with a small amount of water to moisten it. Sand will flatten much easier when it is wet because the grains of sand will stick together.
Flatten the sand using a hand tamper. This tool has a large flat square on one end that flattens the sand out evenly. Push down hard onto the hand tamper to make sure the sand is as compacted as it can be.
Work your way along the entire length of the path until the sand has been completely compacted.
Use a level to determine that the sand is level along the entire length of the path. You don't want the path to dip down or have uneven bumps. When the sand dries, it will be hardened because it was packed together using the hand tamper.