I can't think of any "signs" per se.
There is one experience I had, but I am not sure what to call it. I am a believer in transubstantiation, that is, that the Eucharist actually
becomes the body/blood of Jesus Christ. This is
not a common Protestant belief (in fact, one of the reason that Methodists exist is that they objected to the Anglican church leaving the issue of transubstantiation up to the individual). Once, I was kneeling at the altar for Communion, and when I placed the wafer in my mouth, I felt--I can best say that I felt the Spirit
move through me. For a moment I was filled with the Holy Spirit. Very fleeting, but very moving. I took it as a subtle hint that I am on the right path.
I have also felt God working in my life before, almost as if He reached down and turned me so that I was facing in the right direction. I'm not sure exacty how to explain it. Like my whole world slipped sideways for a moment, and when it snapped back it had moved itself and was now right. It happened when I met my husband, and again when I found out I was pregnant with my first daughter. It is awesome in the original sense of that word.
~~~
Branwyn, I too am sorry your mother feels the way she does about your conversion. We all worship the same diety, after all.