When you start looking around in the dungeon the game tells you:
"Use the movement keys to position the cursor. Abort with [SPACE] or [Z]."

But some other keys however do have unexpected effects:
- 'b', 'f', 'j', 'v', 'y' abort look mode.
- 'w' does nothing: if the next character is a movement key, it also eats the next character, still doing nothing(!), if it is another 'letter' key, it aborts look mode.