Begging is an action done in the castle walls and towns in which you, the character in STWALT asks strangers, villagers and traders for some shiny gold coins. Be warned however, that begging is not tolerated and if you are noticed by the guards, there is a chance you might sent to jail for re-education. 

DO NOT BEG, it is a shameful way to get gold... only beg if you are really desperate or needing some extra- gold. But most of the time, begging is a waste of time.