The first act

In Act I Scene 1, right from the get-go we are shown the level of distrust and hatred the members of the two families,the Capulets and Montagues, meet.Gregory: I will frown as I pass by,and let them take it as they list.Sampson: Nay, as they dare,I will bite my thumb at them,which is a disgrace to them, if they bear it.Enter Abraham and Balthasar.Abraham: Do you bite your thumb at us, sir?Sampson: I do bite my thumb, sir.Abraham: Do you bite your thumb at us, sir?