A different time, before everyone else knew on how to use the computer and the internet (if the people knew how to set it up right) and mobile phones becoming a thing (like the iPhone after mid-2007). It was the last decade that people knew on how to talk to each other and socialize with one or another and people didn't get hooked up with dopamine through Social Media websites or playing with a mobile device (also the internet service was quite expensive for them). But enough with my opinion about the computers and internet.
I would say the 00's were much different, weird, and odd then I remember, when I think about it now. The Tech was big and bulky to carry with, HD wasn't a thing yet, online gaming wasn't the focus for gaming in general yet (yes there were MMORPG games like Warcraft), you got on what you payed for (I'm referring the fact that the games were finished, even though some expansion packs existed for some games), going to the stores was much different compared to today's time and also the entertainment sector wasn't politically involved and not everything got personal (like releasing propaganda for an example).
I would think that the early 00's were from the year 2000 till mid 2005. I mostly played with toys, watched some movies during that time, played video games the most, drew some pictures (well some of them are interesting to see). I didn't start using the internet until I got an e-mail address in 2007.