I agree with what Kt Fu said. She/he is seeking your attention and generally this kind of dog is very clever but need sometime to train up. Prize and punishment is the good way.
I have a smart little dog pretending he doesn't know what is hand hand, sit and stay but in case of prizes like food or going out. He will show you these things. On the other hand, if he is not satisfy something he will jump upto to the bed and ... then I have to wash all the beddings.
3 Ps - prize, punishment and patience are very important. Good luck.