Tighten the right pedal to the right crank by turning it clock wise by hand (photo 1).
You should be able to tighten the pedal almost all the way down by your hand.
IMPORTANT: This step is sensitive, if done wrong, the threads on the pedal or the crank might get stripped. You should tighten the pedals by hand as much as possible and then fully tighten them by using a wrench.