Draw. Play games like Blokus, Memory, Othello, Perfection, Rush Hour. Have them close their eyes and describe how to get from point a to point b, start with going from the kitchen to their bedroom and expand to from your house to a place you often go. Puzzles, all kinds but the Especially the kind where you move the pieces around in a fixed box, you know what I'm talking about? I forget the name :/ it's a mixed up object and you slide the pieces around.
ETA: the are called slide puzzles