Truly, La Cerveza Mas Fina.

An excellent light Mexican beer, often served with a wedge of lime (alternately, a wedge of lemon may also provided). When drinking, proper form dictates that you should push the lime down through the neck of the bottle; you should then place your thumb firmly over the opening and invert the bottle so that the wedge of lime floats gently up to bottom of the beer. You may then turn the bottle right side up and enjoy your beer.