Snow Leopard: Easily shift Quick Look's focus while in Exposé

In Snow Leopard it is possible to switch Quick Look’s focus between windows in Exposé by either hovering the mouse over a different window or by using the arrow keys. After entering Exposé, mouse over a window and hit the Space key to Quick Look it. Then either move your mouse over another window to immediately Quick Look it, or use arrow keys to move around.

Exposé’s new grid alignment helps make such switching quick and easy.

This also works when invoking Exposé in Spaces, but only between windows in the same Space.