In order to pick a lock, one uses the "s" key (screwdriver) along with the mouse (bobby pin). By-the-way, I cannot find this documented anywher (help, etc.), but did manage to figure it out by trial-and-error.

Anyway, the other day I finally keymapped the movement (forward, back, left, and right) functions to the arrow keys on the right side of my laptop keyboard. It's much more convenient than the default "w", "s", "a", and "s" arrangement. When I did that I discovered that the "s" key doesn't control the screwdriver anymore either.