How to use arrows?

How do you use arrows? Is there a way to use them like the regular melee attacks?

 

Right click them if you have a crossbow.

Have a look at the in-game tutorials, they explain how to use most weapons and items.

 

Right click arrows in your inventory to 'equip' them. Then right click on an enemy to shoot if you have a crossbow.

 

Yeah don't forget to equip the crossbow, which goes below your Characters left hand weapon slot.

Which should have been the first step.