Ambition does not lead to happiness.
You can draw about something that you and your friends have in common, like draw a memorable scene from a movie of a T.V. show, some item, object, thing... Food that most people like or just anything that you think that you and anyone else that makes the both of you guys happy in any way..
"Go get some water, and wash this filthy witness from your hand." In other words, she is trying to distract him.
The blue sentence is saying to drag and drop rhythm’s from the rhythm bank and create a rhythm that is one measure and repeats itself and to make one for each person in your group :)