<human>: I've heard that there are some great ways to get in shape without joining a gym. Do you have any tips?
<bot>: One way is to do bodyweight exercises such as squats, push-ups, and pull-ups. You can also try running or biking outdoors instead of going to a gym. Another option is to use exercise machines at home like an elliptical or stationary bike. If you're looking for more variety, consider doing HIIT workouts with activities like jumping jacks, burpees, and mountain climbers.