Do cats know what your saying to them?

TYPICAL CAT BEHAVIOR: Walking in and around your legs while you walk; Rubbing furniture with side of face, and rump; following you around and occasionally meowing: "Feed me!" Walking up to you, looking at you briefly and walking away: "Oh, I wanted to sit there!" Ears perked, whiskers straight out to the sides; looking intently in one direction; head hung low: "I see something!" (Insect or something moving erratically) Ears to the side, flattened like a "boomerang"; whiskers back; low growling; hissing; swatting and spitting when being approached: "Don't come any closer! I don't want have to hurt you!" (anger) Unprovoked standing up and "Tail-fluffing"after being discovered; Looking at you and "dancing" sideways while entire body fluffs up: Not growling or hissing: "Oh no! Don't hurt me!" (playing friendly game of "hide and seek") Occasionally "trilling" (a mumbled meow that sound like, "Brr-r-r-r!") with tail held high as it walks by: "Hello!" Resting with paws under head and tail twitching: "I'm Bored!" I could go on and on, but that's just a few.