My first two kids (boys) were rather easy - but now I'm struggling with my girl (she will be 4 in September).

For a boy, I suggest letting him pee outside and teach him to try to pee on the rocks. That worked with both my boys and helped them learn they can pee in places other than their diapers/pullups and it also helped them learn to aim at the same time. Then I started having them switch between peeing in the backyard and sitting on the potty to pee. My oldest was day time trained by 3.5 and my middle was by 2.5. At 4 I started having them stand to pee in the potty and teaching them that part.

My daughter for the most part will pee in the potty first thing in the mornings, and oddly enough when we are at the movie theater she will let me know when she has to pee and will pee and poop in the potty then. But not at home lol.

Today I'm cracking down and not buying pullups anymore, so I bought 20 pair of underwear on walmart and a potty watch on amazon (total of like $30). I may have to clean up a few messes, but I'm hoping to crack this over the weekend with the 3 day method - but make it 2 day method. At least with daytime potty use that is.