One day you are watching an anime, you listened and watched the opening song. You have no reaction. You continued watching the anime. The next day, you watched the remaining episodes of the anime.. you saw again the opening song. You listened. Then again, no reaction. Continued watching the anime. Then as time goes by of your days of watching the same anime, with all that opening song you heard over and over again, the next thing you know, you are singing-along. You downloaded it at Gendou. You havent had enough. You went to AnimeLyrics. Copied the lyrics of the OP then printed it. Thats the way otakus do it. 
Let Me Be With You (Chobits)
The first thing that blew up on my mind when I heard this song.. ‘Oh Wow’ Yes. Very catchy indeed. Im not really into shoujo songs, but I really liked this one.
Sentimental Generation (School Rumble ni Gakki)
First hearing this song, I did catch up already with it and sang-along as well. Even though I never heard it before.
Bouken Desho Desho? (Suzumiya Haruhi no Yuutsu)
Since Aya Hirano sang this one, I liked it. :3 Understanding the message of the song, it has quite a meaning!
Driver’s High (GTO)
One reason.. because L’arc~en~ciel sang it! WOO! \m/
Ready Steady Go (Full Metal Alchemist)
Yes you guessed it right! L’arc~en~ciel!!11
Kairu
miz
thingle
Krigo
I lol’ed at the first paragraph when i read it. It’s exactly what i do! so does that make me an anime otaku? XD
I also download at gendou lol. But I don’t print the lyrics wahahaha. I didn’t really appreciated “Sentimental Generation” because “Scramble” fits the anime better. Well, I don’t know but I also sang along with it because imagine watching consecutive 26 episodes while not skipping the OP. Whether you like it or not, you’ll end up memorizing it. lol
@foomafoo: Do you think im pretty weird when I print lyrics?! XD
Yes. Scramble fits well with the animu. An lolyeah I memorized it and sang over and over again.
@yami-chan: lolyeah. I know what otaku does cause I am one. ;P You cant hide it from us, hahas~
I prefer Undo than Ready Steady Go
^ SECONDED. I guess.