He really did! We watched my nephew one night this weekend, he is really about 7 months old. I will give you the simple two step process to maky any infant laugh: lean back and take a big breath, then lean in and make a brhrhrhrhrh sound with your lips. He would cackle and kick his feet. If making adults laugh was that easy, I would reprint that every day and be the most popular artist of all time.