No interaction? I hope you're talking to your baby, staring into their eyes, playing with their hands... you don't just plop a baby down and wait for it to grow. You are teaching the baby right now. They are taking in way more than you realize. When I didn't know what to say I would just sing the alphabet song or walk around the room pointing out colors or names of different objects. I swear by teaching babies sign language for the basics. Mine was signing milk at just a few months old, cuts down on crying when they can communicate exactly what they want. And everyone says it but it's true, these early baby days fly by and you should try to appreciate every stage, good or bad.