Ooooo! Cool question! How about these:
- Sneak Theif Invades Capulet Mansion, Steals Nothing but Daughter's Heart
- Friar Prays for Peace Between Feuding Families
- Bliss before Tragedy: Romeo & Juliet Marry
- Feuding Families Tie the Knot
[I'll tell you what amazes me the most about coming up with these: the realization that the act begins with love (infatuation?) and ends in marriage! That's is quite an emotional load for one act, isn't it?!?]
When considering an assignment such as this, it is always important to review what has been learned about characters, conflicts, etc. in the previous narrative. So, reviewing the first act of Romeo and Juliet, especially the latter scenes is conducive to writing lines that will have verisimilitude.
Also, as a matter of note, enotes editors suggest ideas, rather than performing actual assignments. Now, in the latter part of Act I, Romeo decides to sneak into the Capulet masquerade with his friends, Mercutio and Benvolio. While there he is "starstruck" by Juliet and impulsively approaches her; he even tries to steal a kiss from her. However, while attracted to Romeo, Juliet holds to her maidenly modesty and rebuffs his amorous action. When she learns Romeo's name, Juliet is most distraught. Scene 1 of Act II opens with her going onto the balcony of her chamber and engaging in self-discourse upon the fateful turn of events. Romeo hears her, and their their beautiful poetic dialogue begins.
Were a jounalist, especially one who reports on social events and scandals present in Scene 1, he/she would observe the revelers Benvolio and Mercutio apparently searching for a missing person. In Scene 2, this reporter might write headlines about Romeo Montague, son of the prominent Lord Montague, scaling the walls of the Capulet orchard in cover of night for a secret rendez-vous with his family's arch-enemy's daughter, Juliet Capulet. Then, the reporter might follow Romeo after he leaves and find him going to Friar Laurence's cell where he overhears their conversation. Again, for Scene 3, the reporter's headlines can indicate Romeo's clandestine meeting with a priest in the early morning, or something like this. In Scene 4, the Nurse is the key figure, who humorously is referred to as "a sail." The headlines here could reflect this humor by being about the purported sighting of a ship in the streets of Verona. Scene 5's headline could cover the sighting of Juliet Capulet departing from her chambers by a ladder after the sounds of an argument with her Nurse. Finally, Scene 6 finds many lights on in the friar's cell into which dark figures have entered.
(As an aid to the construction of headlines, you may wish to peruse some of the newspapers than are displayed in all the check-out lanes of grocery and discount stores.)