Need a pack of strings and a string cutter
Step 1: Through the Bridge
The guitar string will go through the hole on the bottom of the bridge and loop it through and make the string lines up.
Step 2: Top Half
On the top half of the guitar, you can tighten the string to the right but make sure the strings end up upwards.
Step 3: Bottom Half
Continue putting your strings through until you get to the 4th string. This string will be tightened towards the ground.