I picked up a new foster on Sat and we have been working on potty training and crate training. Yesterday evening I started to work with her on basic obediance and NOTHING seems to motivate her! I tried carrots, kibble, chicken, hot dogs, dog training treats and squeeky toys. All I want to do is lure her into a sit! Her head starts to go back and that's when she turns her body and forgets about the lure. The only thing she has been able to do is turn her head towards me when I call her name..I click and reward. I think I may be getting frustrated to quickly and I should let her settle in more but all of my other dogs have picked up and the sit within days of being home. Any suggestions?