Place the leads of the resistor through the holes on either side of the rectangle marked R1 on the circuit board.

Resistors do not have to be installed in a particular orientation. Either lead can go into either hole.

Turn the board over so that the copper traces are facing up and the resistor leads are pointing straight up in the air, as seen in the second picture.

You may also bend the leads outward to hold the resistor in place, but this is not necessary. As per NASA guidelines, any angle up to 30° down from vertical is acceptable.