make a cross with the two sticks
Step 1: Step 1
put another stick under the one before and over the one infrount of it
Step 2: Step 2
put another stick under the first one you put down and over the one you just placed
Step 3: Step 3
put the stick between the two parallel sticks and keep on doing that until you think you have finished
Step 4: Done!
to start the reaction just let go.