Act out a similar dialogue. Use the phrases from the language box:
Hey / Hi / Hello! How are you doing? / How are things? / How's it going?
Not bad. / Great / Pretty good / Just fine / I'm all right / Not so well. You?
How are classes?
They're all right. Everything is great / A bit difficult. I have to go.
Bye! / Have a nice day / See you / Take care.