techniques for chugging

[GeraldGiraffe]

I learnt how to do this by swiftly drinking litre bottles of water before bed to avoid hangovers. Just tilt the so the neck is facing straight down, put your head back and open your mouth - practice until you don't spill anything.

It's really easy. You could practice by putting a straw in the neck of the bottle too, as it improves the speed at which the beer flows. (obv straw not in mouth)