Generally when I catch my self staring at an attractive guy in a locker room I normally look away quickly, so they don't catch me staring.

Not necessarily, what seems to make you loose weight when drinking a lot of water is that lots of times drinking water makes you feel more full. Although there is some evidence that drinking lots of water may have a positive effect on a person's metabolic rate, so their is that to consider as well.

Personally I prefer a treadmill, whenever i go out running i get tired and have to walk back. If I'm on a treadmill I can always step off when i get tired.