I personally cannot stand being seated constantly for more than 2 hours since I'm way too hyper. (so if you're sitting next to me in aisle, be prepared to be bothered ) On long long flights (across the Pacific, for example), I would walk to the galley on upper deck and b.s. with the FAs. Often enough they would then offer me: food, wine (from First), snack items, or just a good chat. From talking to these ladies, I have a feeling that as long as you don't start scouring around the galley and taking food without their approval, they always welcome your visit and your small talk. After all, after the meal service stops and everyone falls asleep, they really don't have anything much to do.

Nevertheless, on a recent SFO-HKG, saw this passenger who simply walked in the galley, opened the cabinet, took a bottle of wine, pour himself a healthy glass, ho-hummed for a minute in the galley and sat back down. The FAs were giving him the look but he simply didn't care. If air-rage isn't a federal offense, I would strangle him. Cuz that's impolite.

Of course, visiting the galley right around feeding time is a big mistake because they're just way too busy.