It's been a couple of years since I last did one. Here's some things that I can recall. My guest and I were able to catch up on a lot of stuff during our meal and I was still able to complete the necessary steps for the shop.
Make sure you get a name and or description of the host/hostess, the person who seats you, the waiter/waitress, the managers (plural), bartender, and bus boy.
Make sure you order EVERYTHING necessary, usually appetizer, entrees and dessert plus drinks/wine.
I believe you will have a bar portion. Make sure you check the pour count or if they use a measuring device. Also make sure they put the money in the register.
I recall a LOT of timing points required. I just snap pictures (for the time stamp) or text myself - time arrived, time you were seated, time the wait staff first approached, time order is placed, time the appetizer came, time the entree came, time the wait staff checked back with you, time they cleared the dishes, time ordering dessert.
Also, I believe you need to notice what side they serve and remove plates and glasses from the table.
Also, check the restroom, music level, lighting and cleanliness.
I think there might be more, but most of it is timing and judging the professionalism of the staff.
It did take a long time to fill out the report.