tap where you think the ball might be and a pin will appear
if you want to move the positioned pin, tap and hold it, wait for the cross hair to appear and then drag the pin to the desired position
when you moved it to the desired position, simply let go of the cross hair
repeat until you used up all your pins (see counter below) and when you are done, simply click on 'finish'
Pins used: 0 / 0
Active Pin position: x= y=