The best way to exercise is whatever you’re motivated to do; whatever you will actually keep doing. Intramural sports you enjoy are great: social motivation, and you’re frequently thinking about the game instead of the fact that its exercise.
Smaller bits of time also work. Most effective for me: exercise while food is cooking. Start the microwave, do pushups or burpees or whatever until it beeps. Boil water or pre-heat the oven, fit in some 7-minute-workout cycle. Having a hard deadline is nice, and I don’t feel bad when I don’t get as much done as whatever random expectations I had.
Its time efficient, it doesn’t take any dedicated time or additional effort to make happen. I’m not gonna get ripped or ‘swole’ this way, but I feel better, and look better.
And frequently getting started is the hardest part: its a lot easier to want to exercise more once you’re doing a little bit.
Obviously don’t let this get in the way of a “real” exercise routine. But if you find yourself wishing you exercised more but can’t find the time to make it happen, try to sneak 1, 5, 10, 20, however many pushups/situps you can do while brewing your morning coffee, or reheating your pizza rolls.
And as long as you’re not hurting anyone else, don’t care if its semi-public or looks a bit weird. If people judge you for taking care of yourself and doing what you gotta do, they can go jump..(10 times, as high as they can while waiting for their hot pocket)