ok, im a beginner so dont laugh plz!

1: Whats tremolo picking?

2: the intro to suite-pee by soad, might be hard to explain, but try. Can't figure it out.

3: What's reverb

Thats all for now....
1. tremolo picking means very very very fast picking

2. the intro to sweet pee is tabbed on ultimate-guitar, and its probably not something for beginners since you have to know how to do natural harmonics.

3. reverb is a type of sound effect, it gives it kind of a nice ghostly sound. its a really great effect, especially for softer music.
1. Really fast picking on one continous note (so it almost kind of sounds like one note is sustaining in a way)

The intro of System of a Down - BYOD since you allready mentioned them

2. Sounds like natural harmonics to me

3. You know that boomy kind of echoey sound you get when you're in a huge empty room? thats reverb
amps emulate this by shaking around springs (or with digital stuff)
well that was fast.
music and soul of love and hope and light manifesting in our minds, trapping whats left of us in our hearts.
where theres nowhere to go.

Quote by I_Pwn
Ostin, you are the pwnzorz and my new hero for that flame.

and this is a guy who's name is "i pwn"
1) Intro to BYOB, but a bit more faster
2) natural harmonics, slide from 5th fret to 1st fret and back to 5th fret, repeat for the B, G and D string
3) The sound that you get when you play in a large empty room, something like an echo, but not an echo.