4 monthsColby is almost 4 months and is becoming more interactive each day. He loves to be tickled and always lets out the cutest giggles. I don't think he ever stops kicking his legs, and now he scoots himself around by arching his back and kicking off the ground. He has started drooling like crazy and grabs and bites down on anything that gets close to his mouth. Today, he started blowing raspberries.