Dear Armwrestlers,
When you walk up to the table, always remember to stagger your feet, with one foot more forward than the other. The foot that should be more forward should ALWAYS be the one on the same side as the arm you are wrestling with. For instance, if you are arm wrestling right-handed, you should position your right foot more forward than your left. Equivalently, if you are arm wrestling left-handed, you should position your left foot more forward than your right.
So how far forward should you put your front foot? This question has many answers. Some people prefer to put it only a few inches under the table, while others put their foot as far under the table on their opponent's side as they can. Still others choose to wrap their entire leg around the table support, and others do things even more unorthodox! A good rule of thumb for a beginner is to position your forward foot under the table so that the middle of your foot is against the support post on your right (assuming you are right-handed). Please see the picture below to understand more fully.
Here, both pullers have their right foot forward and braced against the leg of the table. This allows them to use their body to the max.
Notice here that the puller on the right (Rob), though he is arm wrestling right-handed, has his LEFT foot forward. This will definitely limit your power at the table! DO NOT DO THIS!!!