Just scroll way up top, click on 'Dice Bot'. I suggest opening it in a new tab to make it easier. Then under 'Character' put your character's name if you like. Under 'dice' put 1 and under 'sides' put 20. Then you just have to click 'Roll Dice' twice to make two rolls. To paste them in the thread, go to 'View Your Rolls' and voila, your rolls are right there, ready to copy and paste with url tags, so that if someone wants to see, they can click the link. Easy!