My cat is acting a bit weird help?

ok we got this kitten shes about 8 months old now. well sometimes she runs into my room jumps on my stereo speakers with her front paws leaning on the tv looking at the ceiling around my ceiling fan or will jump on my bed and just run back and forth stopping at each end to look around. shes looking at the walls for some reason. yes shes had her shots. whats weird is i heard animals can detect paranormal activity so i thought it was that but my house is a new manufactured home(we