The methods you see pictured above are two variants on the directorial command commonly known as ‘Hey Cameraboy, get me that shot, pronto!’
Whilst some complain that Method 1 (‘The Twat’) is somewhat self-indulgent, others feel that it is a necessity for any aspiring filmmaker.
Method 2 (‘The Drunkard’) has a more practical usage, with the main disadvantage being that others often suspect you may have Myxomatosis.
You choose your method, but be careful- carnage may ensue.