Oh yes, you're right, I'd better reread it too. I'd completely forgotten about this book, which is packed with information!
As for smiling in public, it's not obvious, I have a lot of trouble doing it myself. I usually smile when someone looks at me for more than 2 or 3 seconds.
So I'm not one of those people who smile easily, but I do my best to smile and share good vibes 😉
You have read it! So you know just what u was talking about.
If you do that, smile for about 3 seconds when people look at you, I think that's cool. You're doing it anyway.