Victoria Peak (by tram). You pick it up behind (what used to be) the Hong Kong Hilton.
Rickshaw ride, if they still do that.
Have a beer at the bar in the Penninsula Hotel in Kowloon.
Better yet, a gin and tonic.
Do your shopping in Kowloon, right off the Star Ferry. Forget what they call the area now.
Repulse bay is nice, but unless you live or stay there, I don't think there's much to do.
Can't remember what it's called, but there used to be an entire city of junks on the west side. I don't think it's as big as it used to be, they built a shitpot full of low-rent high-rise apartments not far away.
You have to eat at Jimmy's Kitchen, just to say you did, if it's still there.
That's already more than you can do in two days. It's been a long time since I was there, however, and much has changed. Some of the places may not exist anymore, but there's always something. Even the commies can't control that many people in that small a place.