I won't go through my whole repetoire, cuz it's long
But basically, what's most important with my version of potty training, is it is all positive. All dependent on verbal praise and high value treats. Sometimes they would get a verbal reprimand, but never more than once, not screaming, just a firm "NO!".
The second most important thing, was taking them out as much as possible. We got my boy very young, and he was going out 3 or 4 times in a hour. Sure, of course he didn't go everytime, but he got used to the idea of going out. If he did go outside he got tonnes of verbal praise and a treat immediately.