Pouring Wheatbeer

The traditional method of pouring wheat beer is to first rinse the glass with cold water, then, without drying the glass, hold the bottle and glass almost horizontally while slowly pouring the beer. When the opening of the bottle dips into the beer, slowly tilt the bottle up until it is vertical. When there is less than one inch (or a few centimeters) of beer left in the bottle, swirl the bottle vigorously to pick up the sediment and create foam, which is poured on top. If done correctly, the foam should just crest the lip of the glass without pouring over.

http://en.wikipedia.org/wiki/Wheat_beer_glass (Useful info on types of glasses)