This makes sense to me. Not just because I'm a small person, but because what other people seem to be able to sit through quite neutrally often brings me to tears--especially things pertaining to the Gospel and my Father's love for me and all of his children. My little heart just can't handle all of the grandeur, wonder, and love that I feel in these situations, and so it usually comes out my eyes. I just had one of those wonderful moments in my New Testament class.
So if you happen to see me on campus with one little tear on my cheek, or maybe a lot, but I'm smiling, don't panic. I probably just had a fantastically spiritual experience and am full of love and sunshine to the point of bursting.