Dis-obedience

I have been working more and more with Wicca and obedience lately. I haven't done a lot since the lethbridge dogshow and when she was sick but have been puttering around the yard alot with her. She is doing awesome. Her heeling is improved quite a bit from the summer and she is able to work with harder distractions. She is still a bit "I'm a Princess, Make Me" but for the most part she is pretty good. I do have to work on her recall though- something I took for granted. We work on fronts- not alot but at least every few days...she is always really eager and is very reliable- I took her out to a different park this morning and she was a bit weird about the actual recall part though...not too sure what exactly she is thinking. I always leave her with a quiet- "wait" command. And call her "Wicca Front!" but today - every time I did it (about 4times) she kind of started coming and then would either stop or look away- very stressed about it....hmmm....I thought maybe my body language, maybe my tone of voice...so I tried it without making eye contact with her- with a toy, running as soon as she started towards me...as soon as the toy came out she forgot about her stress but it is something I will have to figure out and fix.......