What guitar cord thing am I or should I get?

YAY! Ok, so I found out what guitar I am getting for Christmas (an Ibanez grx20) and what kind of amp I am getting, but I'm still kind of clueless so please don't pick on me. What kind of cord thing am I or should I get to plug my guitar into my amplifier when I get it? I'm sorry I'm so dumb, or retarded, or whatever you want to call me. I'm really new to this, so please be nice, :) danke