i just bought my guitar three days ago and im wondering how to play two strings while muting the string in between them....its confusing....
Assuming you're referring to a powerchord like this, it's easy.

Rather than applying full pressure with the finger that presses down on the middle string, lighten the pressure so that it dampens it.
you talking about octaves?

use your first finger to play the 6th fret, and let the rest of that finger rest of the string below it. use your third finger to play the 8th fret.

thats how i do it. make sense?
Ibanez S520ex
Epiphone G-400
Roland Microcube
Alvarez MC90
Quote by matthedestroyer
thank you! i've been trying to figure it out for hours!

it worked.

it took me a while to figure it out too when i was starting out.

He's laughing at YOU.
You better click that bastard.

Ibanez RG370DX
Peavey Valveking 112 (w/ Bad Monkey and GE-7 EQ)
Maybe I just play wrong, but what I do is when I fret the top note with my index finger, I lay index finger across the board so it mutes it... That just how I play it