she's still a baby. as big as she is she is still super young. you can look for signs like sniffing, walking a little bow legged, acting restless, etc. BUT with her being this young, she may not show any (she doesn't know to) and she really doesn't have control over when she has to go. with puppies, we take them out every 30 minutes to an hour, and 10 minutes after every meal. we take them out a LOT. this way they get the idea they're supposed to go potty on grass not in the house. it will take her a while though. leaving the door open won't help b/c she doesn't know to go outside yet though. maturing to a little older age makes a big difference and you'll see progress the whole time. right now though, is the time to teach them and help them learn, but she will still need your guidance, etc. just like kids, they don't get potty training in just two days, it takes physical maturity, and learning to do it. even after she learns she will still have accidents sometimes though.