1. find the doorknob on the front of the door.
2. identify which side of the door the doorknob is on.
3. grasp the doorknob with one hand.
4. twist the doorknob towards the center of the door, usually about 60-90 degrees, depending on the door.
5. identify if the door swings towards you or away from you.
6. if the door swings towards you, pull the doorknob. if the door swings away from you, push the doorknob.
7. continue opening the door until the space between the door and the door frame is large enough to pass through.
8. walk through the doorway until you are far enough through that the door will not swing back and hit you.
9. release the door knob.
10. push the door back into the closed position if the door does not close itself, or leave the door open if it is appropriate.