A good example is the episode where he goes to Pam's art exhibit and buys her drawing of their building. A very nice moment where the real Michael gets to the surface for a bit.
That is one of my favorite moments from the show, just cause it's so genuine. It's so great because anyone else would have shown up and told Pam they liked it just to make her feel good, but not Michael, he shows up and genuinely loved it to the point that he bought it.
I just loved that moment.
It's one of my favourite moments too. It's so sweet how he insists that they hang it up.