Person: What majestic work of animation is this? (discovering anime for teh first time)
-a few hours later-
Person: I WANT TO BE WITH YOU FOR THE REST OF MY LIFE! -glomps computer-
Its either...
You watch 500+ series...
Or be a vintage nerd and watch the 1950 animes
Astro Boy, Macross, Gundam, Lmao
Here is a good example
http://myanimelist.net/profile/MobileTv
Then again, it's usually the knowledge you aquire from the anime
and your activity, if you browse the web for anime everyday
watch series everyday, and talk about it on forums everyday
purchasing DVD/BD box sets, and anime PVC figures
Then you pretty much are an otaku