Personally I'm surprised Wyll doesn't approach you as you walk by. Not that I really want him to, most times I ignore him. Gale as well unless I *really* need a spellcaster.
One thought to make things stand out a bit would be to put something on the mini-map that highlights an area of "psychic disturbance". If we all have tadpoles in our heads, you'd think you'd start getting a feeling that another one is close before you're right in each other's faces.