on that first day of our brief encounter , and also on many other days as well , i would witness lexannas variations in the form of vacillations in her contrivances ; both in her attitudes and also in her shifts of personality , as she would oftenbegin again tochange her approach to me : hot and cold , yesterday and today , back and forth , in and out it was nothing so unsubtle , and yet , there was also a subtlety that remained , once the jerkiness of her more abrupt shifts in attitude and awkward jumps in personality subsided .