Can you solve the MAGNET RIDDLE? ft YouTube CEO Susan Wojcicki

Maybe you can try to magnetize one bar by sliding the other on it, the way you make a home made needle compass. If you were sliding the magnetic bar, then you slightly magnetize the other, and in some way they might repel enough for you to know it worked. If you were slinding the non magnetic one, nothing will happen and both pieces still attract with the same force like before. Or you can just hang them with a string and the earth's MF will do it's thing