Look for the string height screws in the bridge of your guitar and identify whether or not they can be adjusted with a small screwdriver or Allen wrench. Some electric guitars will have two screws that surround each string, while other guitars will have two screws that adjust the overall height of all the strings.
Place a screwdriver or Allen wrench into each screw and turn it counterclockwise to raise the string height. Loosen each screw the same amount to ensure an even string height across your guitar.
Make a small adjustment to each string height screw and then play the guitar to check for buzzing. Continue to loosen the string height screws until the strings no longer buzz.