Melee is the easiest way to fight. To attack an enemy with a melee attack, all you have to do is use !attack whenever it's your turn in combat.
However, there's more to melee than you might think at first. For example, you can "build" a regular, heavily armored warrior with decent strength and endurance attributes. An effective combination. However, sacrificing protection for some agility and additional strength it also a good choice. You'll do more damage with attacks, but will also be hit harder. Experiment and see what kind of melee character you find the most effective!