Step 1 - Check that all the parts were included with the kit
Step 2 - Find the resistor
Step 3 - install the resistor into location R1
Step 4 - find the switch
Step 5 - Install the switch into location S1
Step 6 - Find the battery holder
Step 7 - Install the battery holder into location BT1
Step 8 - Find the 10mm LED
Step 9 - Install LED into location D1 with the longer lead of the LED into the square (+) pad
Step 10 - Turn over the printed circuit. Bend the leads of the parts to hold them in place.
Step 11 - Solder the parts to the board
Step 12 - Install a 2032 battery with the + side up. Turn on the switch and watch the LED flicker!