What do we really know about minds, even human minds? We know that they differ, but that still leaves a lot to find out. What do we think about? Are there basic concerns that all thinking beings share?
Let's start with the really basic needs of living things.
Energy (probably some kind of food)
Liquid (probably water)
Some way of dealing with predators or threats
Things that the aliens might provide for themselves:
A way of communicating
A way of preventing/resolving conflict between individuals