What process do you use for yeast.

Been making pizza for a couple of weeks, dough turns out fine, some days better some days worse, but my main question is for you guys who make pizza a lot, do you let the yeast sit in the water for a bit to activate with sugar, or do you just pour the yeast in water and call it good(which never has worked for me ive never gotten it to bubble up at all), or do you just put the yeast with flour and just pour water on it and start kneeding... because I've seen so many different tutorials with so many different processes that I just wanna know your guy's opinion and what works best for you...