Off The Ground
Hang the bike up or put it in a stand so the back wheel can turn.
Set The Gear on the front and rear derailleur
If the rear derailleur has a cable connected select the highest gear. If the front derailleur has a cable connected select the lowest gear.
Use The Small End
If one end of the chain has a pin sticking out, thread the other end through the system.
Don’t let the chain drag on the floor. It will pick up dirt.
Connect the chain coming down the front of the small cog at the front to the ‘C’ hook in the other end of the chain. The chain is now ready to be connected.