...bringing a menu, tray of food, a drink, and asking if everything is okay...
When I waitressed my job was a heck of a lot more then just that!
First off I had to get there before my shift started to do things like fold napkins and set tables (which requires knowing how to properly set a table) and pre-ice the pitchers, make sure there were enough butters, the sugar bowls were filled with an assortment of sweetner packets, and there were adequate creamer things filled with milk.
I then had a 6 hour shift during which I got 1 break which was my only opportunity to sit. I needed to smile that whole time. I had to work as a team with other servers, the chef, the dishwashers and the manager to make sure we timed things appropriately, and didn't get under each other's feet.
I had to know what was in, and be able to describe in appropriate terms, every item we served. I could not just say "mixed vegetables" were the side, I had to know it was a "medley of carrots, yellow squash, green beans and bell pepper slightly sauteed with garlic", I had to know the type
of mushroom, the type
of bread, the herbs used, if eggs or dairy or a non-vegetarian broth was used, all the sauces and garnishes, etc.
I was never supposed to let any one's water glass get below an inch of water and I had to watch the other beverages and offer refills appropriately. I had to carry an entire table's worth of entrees on one big tray and serve them without tipping anything, bumping anyone and knowing who got what at each table (no "selling an entree" which is to say I could not get to the table with the meals and say "ok who got the chicken?" which meant loading my tray appropriately in the kitchen so I could unload in order) and serve from the right and clear from the left. I had to check on my tables and be accessible to be called over to attend to needs. And remember I have to smile through all this.
And it just keeps going with a million more ways it was more then just
handing someone a menu writing an order, bringing it and saying "everything ok?" I worked on average 2-3 shifts a week (I was in college) and I would literally wear through - I'm serious they just disappeared disintegrated - a pair of shoe insoles a month from the walking back & forth so much (I only wore my work shoes at work). I enjoyed the job but make no mistake it was hard work