Good Morning Lesson

This is what happened during my English class for Year 1 last week.

Teacher: In the morning, if we want to greet people, we have to say Good Morning!, Good Morning!
Pupils: Good Morning!
Teacher: For example, if you want greet Lio, say Good Morning Lio!
Pupils: Good Morning Lio!
Teacher: Good.. Then if we want to greet Juvini in the morning, what we have to say?
Pupils: Good Morning Juvini!
Teacher: Very good..class. Greet Saidi?
Pupils: Good Morning Saidi!
Teacher: OK... that's it. Then how if we want to greet people in the afternoon?
Pupils: (confidently) Good Morning Afternoon!!
Teacher: (''  '') ..........

=)