Phase 2 is kind of a compass test, not to complicated though..
You will do some computer exercises to check coordination and time response. You will also talk to a psicologist about normal stuff, also
you can be asked to do some memory exercises.. Things like that, nothing irregular from the outside world.. Be well rested it can be a long 2nd day.
Again, just be your self, don't try to be Einstein or something you are not..