Add the necessary amount of joint compound for ceiling coverage to a clean, empty bucket. Mix the texture, using a drill with a paint mixer bit. Gradually add a small amount of water to develop an easy-to-spread consistency.
Add texture particles bit by bit until they are distributed consistently in the joint compound. Options for particles include powdered texture compound, sharp white quartz sand, foam beads or shredded paper. For a minimal effect, add only a small ratio of particles. For a more mottled texture, add a larger ratio. It is also possible to leave out texture particles and instead create the ceiling texture solely by hand.
Remove any furniture from the room, and cover the floors and any built-in furnishings with drop cloths. Climb a ladder to begin applying texture in one corner.
Spread the texture mix on the ceiling with a wide straightedge trowel. Apply approximately a 1/8-inch layer for a subtle effect. Apply up to a 1/4-inch layer for chunkier texture.
Apply any desired hand effects as you go. Options include sponging, stippling, swirling, scratching, skip troweling and stamping. Possible implements to help you achieve your desired effect include sponges, paintbrushes, brooms, putty knives, trowels and sticks.
Allow the joint compound to dry, and then apply primer, followed by two coats of paint.