First let me say Luma doesn't bark. She SCREAMS! Lol! Not randomly though, thank goodness. She never just barks for the heck of it. When we play with her she growls and makes the funniest noises, very aggressive sounding which is funny coming from such a sweetiepie.
Sometimes when she is in a sassed up mood she'll talk to us, to tell us she wants something. She knows we're pushovers