Modelman,
All good advice so far.
Here's another idea for you, though: ask your instructor why he is taking you to another airfield after 2 hours.
I don't normally take my students to other airfields until much later in the course, but that is at least partly because there aren't all that many airfields near me which are convenient to go to in the time I've got available for most lessons. But if your instructor is planning on taking you somewhere, I would guess he most likely has some learning objective in mind. It might simply be for you to see runways other than that at your home airfield, or it might be because he wants you to become familiar with the layout of the local area including the location of this particular airfield, or it might be because it has a different level of air traffic service to your home airfield (maybe your home airfield doesn't have air traffic control and this one does), or any one of a number of other reasons. Once you know his reason, you can prepare yourself to meet the learning objectives.
Of course it might be that there isn't any specific learning objective. Perhaps the aircraft needs to be taken to another field for some maintenance, and it's convenient to get this done during your lesson, for example. In which case, the advice from previous posters is all good advice. Or perhaps the instructor is just getting bored with his local area, and wants to go somewhere else for a change, at your expense.
Have fun!
FFF
----------------