Well maybe not but it feels a bit silly

I've just got into stamping, and so far i've only done words and wot-not, in black, but i've bought some stamps which i'd like to add so colour to. What's the best thing to use to add colour - paints, pencils, chalks, inks....??? Haven't used anything like any of these before except slapping some acrylics onto layouts, so any tips would be gratefully received!!

Lx