*ticklish on his sides, chest, and neck
*rolling over from his stomach to his back
*holding his head and chest up when on his stomach
*happy when he is outside
*sitting up in his bumpo seat
*sitting and playing in his exersaucer
*grabbing and holding on to objects and toys
*still sleeping through the night
*laughing and giggling out loud
*recognizes certain voices like Mommy's and Daddy's