Bring a pad of paper and a pen, and use the time to jot down notes regarding your experiences and your observations. You don't have to do anything with the info, but it makes a nice souvenier, as well as a nice way to pass the time. I don't know why I never thought of this before. I used this idea at Akerhaus (or however it's spelled) in Norway, and twice at Boma's. Although these are both buffets, I'm sure this idea would work just as well for "server" resturaunts.