To answer most questions...
I'm usually a little hungry when I first eat, but I think something like a banana or just drinking coffee or tea would make me feel better. This is why I think it might be better to wait until later and then have a normal sized breakfast.
For breakfast, I eat a mix of protein (yogurt, milk, or eggs), fiber, and fruit every day.
And yes, I do eat at my desk at work. There's no where else. They don't have a "cafeteria" area
I exercise at different times during the day, but never before lunch.