Pattern folding for me wasn't that hard on the practice tests but was very difficult on my DAT. The easiest ones are where you just have to figure out the correct shape. This usually just involves finding the side that is the weirdest and matching it up with the weirdest side in the answers, until one matches. The difficult ones with all different shaded sides and various folds you just have to pick an answer and then unfold it in your head. If you do this you can just cancel out answers until you are left with the right one. The good thing is usually you can only see 3-5 sides in the answers. So just match those sides up with the diagram/ unfold it in your head, and usually one side will be oriented wrong/backwards except the right answer will hopefully work out right haha.
I hope that makes sense. Crack the PAT is the best practice but like I said my pattern folding was crazy on my DAT, my friend said that his was easy on his DAT. Good luck!