Cleaning the keyboard

Hey guys. The previous owner of my MBP had those sticky things that are like different colors on the keyboard. Anyway, after pulling them off, there is still some sticky residue on the keys. How do I clean this off?

try a warm damp cloth first, i have also seen people using the Mr clean magic eraser on the keys but i myself wouldnt do that, its ok to use on the body and works great.

I use baby wipes to clean my. Seems to work like a charm.