Walking: Whenever your in a building and you have some time take the stairs instead of the elevator. When you get to a place by vehicle park somewhere that will allow you to have close to a minute walk.
Balance: Whenever your at home and your doing something like using the mirror, putting on close or washing something stand on one foot while doing that.
Awareness: If your at home with nothing to do and you don't want to exercise to hard practice countering techniques from an imaginary attacker. You must do this while sitting, standing or lying down.