I have to agree it can be difficult to correctly interpret the subtle signs. My current T can be blank slate or neutral, and I often have no clue as to what he may be thinking or feeling, so that's all I have to go by aside from asking him directly. I am very perceptive though, and can often tell when he is distracted by something in his personal life or has a headache or is tired as he will confirm. I've been wrong plenty of times too though.

The one T I had gave me gifts and 2 hour sessions, so that was more obvious. I think he enjoyed that I adored him, idealized/was in love with him, but it's positive transference nonetheless.

I agree that's its not always transference, and come to think of it, probably not all with current T, but it depends on how you define it. I am certain there was countertransference was last T though.