This discussion invariably gets into debate over cultural differences, but here are some things I've noticed that have nothing to do with culture or labour laws and are simply good service.
1. Menus are published in advance (around two months before your flight), you can easily go online and see what will be served and what the options are. Onboard the flight, you will get a menu describing the options with photos not grunts of "chicken or beef" as the FA rolls by with the cart. Same for food offerings in lounges.
2. Special meals. If you order a special meal, the check-in agent confirm the details of your meal. This avoids the "oops we don't have your meals for the 13 hour flight" after boarding situation; if for whatever reason your meal request hasn't been registered you have the opportunity to pick something up in the terminal. Though as a frequent consumer of AVMLs, NH has never forgotten my meal.
3. Self serve snacks (chocolate, bananas, rice crackers) and water/juice in the Y galleys between meals.
4. Call button promptly answered even in Y.
5. If you have an aisle seat and you have your elbow in the aisle, flight attendants will ask you to move it or tap your shoulder rather than deliberately ramming you with the service cart. Actually literally every airline on earth except AC and the US3 train their FAs to do this.
6. Automatic check-in. Enter your passport info online in advance and your BP is emailed to you automatically at T-24.
7. More organized boarding. Queues strictly enforced, passengers not yet called turned away at the gate.