Your Activity Level should be chosen based on your day to day activities (ie. your job and/or daily home activities), not including deliberate exercise. Please take a look at the descriptions and examples below to help you determine your Activity Level.
At work – You work in an office and spend most of your day sitting
Career Examples: Secretary, College Student, Receptionist, etc...
At home – You are working on the computer, reading, watching television, or just generally lounging around
At work – You are up on your feet walking and moving around throughout the day, but you're not really increasing your heart rate
Career Examples: Teacher, Car Salesperson, Museum Curator, etc...
At home – You are continually alternating between running errands and sitting at home reading or writing
At work – You are moving around most of the day, and sometimes you break a little sweat
Career Examples: Landscaper, Stay at Home Parent, Mail Carrier, etc...
At home – You are doing gardening, housework and cleaning for the majority of the day
At work – Your job is labor intensive causing your heart rate to move up and down throughout the day
Career Example: Professional Athlete, Waitress, Construction Worker, etc...
At home – You never stop moving and are constantly moving and lifting heavy objects