Happy to. The key to smart play is proper betting and good social skills. In a nutshell, bet more the more you win and less the more you lose. The simplest approach is to bet 1-2% of your current bankroll[2], rounded such that you don’t annoy your dealer or pit boss (see below).
For BJ I usually just do an ace-five count[1] because it’s simple enough I can do it without being distracted from the experience and it moves the needle a few points. But basic strategy is good enough.
As for craps yeah, pass and then come every throw with max odds. Don’t pass and don’t come is mathematically superior, but it ruins the experience because everyone including the crew will hate you. Also place six and eight.
With respect to RFB, for blackjack they’ll want to see around 4 black chips a hand base bet. But if you have a relationship with a host and can be charming to the pit boss you might get RFB as low as 200 a hand. That’s assuming 4-5 hours a day. You can bring your theo up by just spending a ton of time at the tables but I like to do other things. However I haven’t been to Vegas since just before Covid so I don’t know if or how things have changed.
Realize that the pit boss has considerable authority over the comps you do or don’t get. He or she inputs your average bet into the system and if you’re pleasant, toke (tip) the dealers generously, and otherwise show respect they may well rate your play considerably higher than is objectively warranted.
Doing this I’ve come out considerably ahead including comps over the course of many years, but I won’t lie I had a bad trip where I lost 15 grand so don’t play with money you can’t afford to lose. Of course I’ve also had several trips where I walked out with five grand or more to my favor.
Another social skills aspect is maintaining a good relationship with your host. They can bend the rules for comps too. I just ask them what they need to see for the front end comps they’re offering and exceeding that is how I’ve gotten RFBed.
[1] https://wizardofodds.com/games/blackjack/ace-five-count/
[2] A good-enough simplification of Kelly’s criterion for my purposes.