There's this thing that I just don't seem to get.
How do you know, and what is the logic behind when to hook or not when writing a box.
In some cases you have to hook the second stroke and in other cases you don't hook it.
口 kou - no hook
日 ri - hook
Or is this just a case of learning it by heart?
Also when reading signs or texts they don't even show the hook on the characters such as 日, is it important?