There is a tender family feeling at Laertes's departure with dark undercurrents, particularly in the way Ophelia is treated by her father and brother.
Hamlet, Act 3, Scene 1.
In Act 1 Scene 4
Hamlet - questioning the meaning of life
The Ghost, in Hamlet, Act 1 Scene 5
Horatio plans to go meet Hamlet at Elsinore, which he does in Act 1 Scene 2. Horatio plans to meet Hamlet on the battlements, which he does in Act I Scene 4. Horatio plans to meet Hamlet at the play, and does in Act 3 Scene 2. Horatio has no plans to meet Hamlet in England.
Hamlet. See http://www.opensourceshakespeare.org/views/plays/play_view.php?WorkID=hamlet&Act=1&Scene=1&Scope=scene
act 3 scene 1 lines 147-148 :)
Horatio, in Act 1 scene 1. Hamlet doesn't see it until scene 4. It has to be this way because in scene 2 Horatio tells Hamlet that he has seen the Ghost.
In the exposition of Act 1 Scene 5 in Hamlet, two characters speak: the ghost of King Hamlet and Prince Hamlet. The ghost reveals the circumstances of his death to Hamlet, setting the tone for the rest of the play.
These are the first six words of a speech Hamlet makes in Act 3 Scene 1 of the play.
Hamlet, Act 3 Scene 1
Hamlet Act 3 Scene 1