Do not play your hand slowly or just call raises. Also you shouldn't bet differently pre-flop for different cards, but you should for different positions.
eg. UTG raise 2.5x-3x blind raise, MP/Button- 3-4.5x blind raise. (this can vary to even upto 10x blinds depending on how your table plays)
It is ok to limp if you there are aggressive players after you who are raising a lot and you think you can re-raise them and make them fold or build a big pot. But raising small can make weaker hands get a chance to make draws and sets.
Even when bluffing
otherwise, try to raise the same amount you do with the KK to hide hand strength.