No sweat. No problem! Low intensity
Breaking a sweat. Sweat appears on the normal places on your shirt around your collar and armpits moderate-high intensity
If you can ring a gallon of sweat from your shirt after exercising then you are working too hard at a high-very high intensity
You would have to consistently work out for 45-90 minutes everyday to start seeing any weight loss results from doing only Low intensity activities, about 30-45 minutes for moderate-high intensity activities, and 15-30min for high-very high intensity activities.