The leftmost one is left, the rightmost one is right. Of the two that remain, the one that looks vaguely like an arrow pointing downward, that one goes down.

The leftmost one is left, the rightmost one is right. Of the two that remain, the one that looks vaguely like an arrow pointing downward, that one goes down. There's one key remaining, and that one goes up, k? As everyone says, it doesn't take a lot of practice before you know it well enough that you'll never forget. Unbind the arrow keys, or go play some nethack (no-keypad), or whatever.