Jem, Scout and Dill have become good friends. Every summer Dill comes to town and visits them. The three of them have become obsessed with trying to figure out ways to get Boo Radley to come out of his house.
The very first dare comes to us in chapter one. Dill dares Jem to run and touch the Radley house. You can tell Jem is not at all thrilled about doing this. He is afraid, but he won't admit it or show it to Scout and Dill. Scout knows that he is afraid, but she won't say it out loud. She does know that Jem will eventually do this dare.
"In all his life, Jem had never declined a dare" this is what Scout tells us about her brother. Although he may be scared, he will do it, because it has been given to him in a dare. Jem runs to the house and slaps the side of it. He is scared, but he has proven that he is brave. This is a symbol of the person that Jem has been taught to be by Atticus.
The first dare was for Jem to up the the Radleys front door and knock .