First, collect all your supplies. Measure and cut the chain, so it will fit around your wrist
Now grab one Lego and your needle. Carefully, heat needle in candle's flame. Then stab your Lego where you want to put the jump ring in.
Take your pliers and a jump ring. Bend the jump ring and stick it through the hole you just made. Then close the ring, and there's your first Lego charm. :)
Now take your chain, pliers, and one more jump ring. Bend the new jump ring and connect the Lego charm to the bracelet, and close it off. Repeat steps 1-4 and space Legos out accordingly.
Almost done! Now just connect your clasp with a jump ring to the end of the chain. Wa-lah! You now know how to make a Legos bracelet! Now go show off your masterpiece! :D