Walk in. Touch everything. Break nothing (or do).
WASD
Walk
Shift
Run
Space
Jump
C
Crouch
Left click
Reach with left arm (hold)
Right click
Reach with right arm (hold)
Q / E
Grab / let go with left / right hand
let go while reaching
= throw toward the crosshair
F
Use: switches, lamps, TV, tap, boombox
or just touch it
with a reaching hand
V
First / third person
N
Day / night
R
Reset objects & windows
Wheel
Camera distance