Will Google penalize me for using multiple keywords?

using keyword multiple is a good technique, but don't do spamming by keeping the repeated keyword every where

 

Why would they? As long as your not keyword stuffing.

 

Simply said, keyword stuffing, false keyword to content, and spam will get you into some trouble. Be sure that any anchor text'd keywords that lead to spam sites or even negatively rated sites can also have a poor effect. Good luck!

 

can you give example of interesting keywords...i cant get you.