Dipping is the simplest method, especially good for small items. A cleaned pot is dipped in a large pan or bucket of glaze, then withdrawn immediately and shaken off the excess glaze. The pot should be dip in an angle to avoid air trapped inside the surface. A metal tongs is handy to hold smaller pots; the tips marks or finger marks could be touched up with a brush after. If the dip glazing is not thick enough on pot, the remedy is to spray instead of re-dipping again.
Pouring can be used to a variety of shapes. Most of time, we use to glaze insides of bottle and vase. The pot is rotated quickly until inside surface are fully covered with glaze. Excess glaze is poured out and a shake to make the glaze evenly. Glaze for dipping or pouring should always be thinner than spraying or brushing. Outside surface is the same manner, but better with a supporter as pouring. Interior is better to be glazed first, then the exterior after.
Brushing is easy to handle and can create some interesting effect sometime. It is applied for large pieces. It is better with a 1-inch flat brush that has a large coverage. Brushing should be work quickly and avoid the underlain glaze too dry to be covered. Glaze for brush should be not too water or dry, otherwise it will cause uneven and dry too fast to develop blisters.
Spraying is good to work on large pieces or variety of shapes. It can create subtle variation effect in color and have more control on the thickness and coverage. However, spray has a large amount of waste and need to work in a booth with an exhaust fan. Glaze should be sprayed slowly in order to build up a coating. If spray too quick, the glaze might run and cause uneven. Mask should always be worn as spraying.