If you think of exercise as a chore that you have to do, it can be more difficult to stick with it.
The Weight-Control Information Network offers these suggestions for making exercise fun:
Figure out which fitness activities you enjoy most, and incorporate them into your exercise routine. Try to vary the routine so you don't become bored. Walk with a friend or family member, or sign up together for an exercise class.Build a community or backyard garden, and work in it regularly.Exercise in short spurts, such as three 10-minute walks.If you are concerned about exercising outdoors for safety reasons, join a local gym.
Source:
http://www.medicinenet.com/script/main/art.asp?articlekey=176107