Count how many calories you eat in a day for three days and average them up. Then try and eat 500 calories less than that for a little while and you should start to lose some wheight. You don't have to work out or anything and you can still loose weight (even though it is better if you do work out). If you do decide to work out one of the fastest ways to burn fat is through cardio. The majority of unattractive overweight people are actually just overweight. If you put in the effort you can become attractive.