My 11 month old dd who I must admit I've been a little concerned about (total lack of crawling and hates being on tummy, always has) has started to swivel around in circles when sitting on her bum. She is thrilled that she can whirl around and find different toys, although she can't yet move forward more than a few inches. She tries by doing a sort of pelvic thrust. Is this the start of bottom shuffling? Hope so, as it's first sign that she can change her position independently. She can stand fine against the sofa although she's scared to cruise along it - not sure she's got the balance yet.