By looking at Paris's and Lord Capulet's expression of grief, I have found that their expressions were sincere and heartfelt.
Explanation:
In Romeo and Juliet's scene V, Paris used the words "beguiled, divorced, wronged, spited and slain." All of these words show that death of Juliet has made him angry and distress.
Capulet says, "alack, my child is dead and with my child my joys are buried." These words show that he is sad because his child is dead.
