I'll give another example, and this was from when I was a teenager. I worked for min wage (4.25 at the time, I think) not tipped wage. But, I'd bring home about 200 bucks a week in tips (which, yes, I did report to the taxing authorities, but didn't have to report to my employer, as I was not a tipped wage employee).
I put on birthday parties for kids. My trick? Well...a few things. And, as disclosure, I'd prep my "Moms" (because lets face it, that's what, 99% of the time, gets Dad to pay for this stuff, not being sexist, just saying, that's how most households worked, especially in the mid-90s).
1) Every day was my Birthday. Not kidding. I made it a point that when a new party was coming in, I'd be out at the Kidcheck stand waiting for them, and even if I was having a bad day, I'd pump up the charm.
When I met the birthday kid I'd say, "Wait...today is your birthday? GUESS WHAT! It's MY BIRTHDAY TOO! How OLD are you? 7? WOW!" (and then I'd ask the kid to hold out their hand as I handed out tokens, one per year, that, at first, I purchased myself, but when I became I manager, I instituted this)
But, there were other little tricks. I'd give all the tokens to Mom (one thing I argued for a long time when I got promoted to corporate training should be standard...but was never adopted wide scale...dummies...). It was to get her out of my hair. The reasoning was simple. The common complaint Mom's had at these paid B-days was that they had to "do all the work"...but often it was Mom jumping in to do the work instead of giving me time to do it myself. So, what a distraction! Now she's the center of attention for all the kids because SHE has the "pot of gold". Kept her out of my hair and off in the gameroom instead of puttering over me because I wasn't doling out the soda and pizza fast enough.
2) I didn't offer many choices. Rather, I'd say... "We have pepperoni and cheese, those are the most popular." And "We have Fruit Punch and Coke"...etc.. This is true "suggestive selling", not the "would you like fries with that" sort that is more common...
Then I'd just deal with the picky kids, or picky parents, individually.
3) I always precut the cake. I had a few managers (one whom eventually got fired that I replaced) who said that was stupid, but no, it's not. Again, back to speed of service. Mom doesn't care about cake cutting (that's for weddings), they care about the candles being blown out.
4) I offered free coffee to the adults, especially the elder guests, after the cake was served. This was included with the package, but most managers downplayed it for stupid cost savings (our coffee was cheap and terrible...so why bother?).
5) I wouldn't try to be the KID'S best friend, rather, I'd try and make the MOM the star. Meaning, for example, take present time (right after the cake). I'd organize all the kids into a circle around the birthday child, and I'd have already set up a semi-organized pile of gifts to pull from. I'd ask Mom and Dad privately if they had a "special gift" they wanted/needed to give in a special way (some did, some didn't, but it's the gesture, cause sometimes when you've saved for months for that new whatever the kid wants, you really want that moment to be special, and I got that). I'd then spend the rest of the time collecting the paper into a trash bag I brought out with me, and the gifts into another, while writing down who gave what gift on a note to deliver to Mom at the end so they can do Thank You notes if they are into that (e.g. "Jenny gave a Barbie Malibu set", that sort of thing).
6) I'd prepare my family early (at 1 hour into the whole 2 hour experience), that we'd need to move them, and work with the manager / seater to preseat them to a new location (we had new parties coming in, and I needed them off my row, but they were still my Guests!). They never minded. I'd box their food early, and help get them moved, help them with the bags to the car, etc...all the while getting ready for the next group.
I made a TON of money doing that same cycle, 20 hours a week, my late Junior, and I really got good at it my Senior year in High School. My tax filing between my FIFA Ref job and that job was around 20k (which, I HATED PAYING FICA!)
Anyhow, my point with the story is that tipping is earned with exceptional service, and should not be viewed as charity.
I earned every tip I got. Lots of servers do not. They do the bare minimum, and fall back on "well, I did everything they asked!"
Nothing I did was difficult, or particularly "bright", it was just that I cared a lot about what I did. And, as I learned when I moved into management, it is something that can be trained and is infectious. And, what I've also learned, from working with tons of people who got "Restaurant Management" degrees and the like, it isn't something you learn in a stale classroom.
When I would train servers, I would tell them, it's not about doing what is asked, it's about doing what they DIDN'T expect! Look your customers in the eye, and more importantly, watch their body language. That says it all.
A classic thing I'd tell bussers/servers, when I'd train them, is a subconscious thing most people do when they are ready for the next course or a box (depending on the venue) they tend to push their dish away and sit back.
It's all minor stuff, but easy stuff IF you pay attention.
A staple of good service to me is if I have to ask for a refill for my drink, or if they notice and bring it to me. If the latter, they get a larger tip. If the former...well, I can be quite chincy (though I still tip).