What do you already know about it?
What could possibly be the content of the text?
Which words come to mind that you already know? Which words would you want to look up?
If you have to do a task on the listening text, check whether you have understood the task correctly.
Think about what type of text you are going to listen to.
What do you know about this type of text?
Relax and make yourself ready to pay attention to the listening text.