This Is where you will be tuning your guitar. The knobs on the sides are the tuners. If you have an acoustic guitar then it will be the same thing. Just follow along.
Step 1: Tuning the Guitar
What you want to do is make sure that the low e string(the first string on your guitar) and your a string(The string next to the low e string) make the same sound when you hold your finger on the fifth fret on the a string.
Step 2: Tuning the Other Strings
Tuning the other strings are the exact same thing as tuning the low E string. You make sure that the string your tuning sounds the same as when you hold tour finger on the fifth fret on the right to the sting you are tuning. And once you've done that to all of your strings then your guitar is tuned!