Season 1, Episode 7 - Session 4 with a time traveler who has yet to gain control of her ability. I have only observed her ability in action once, but I hope to change that. 

Season 1, Episode 6 - Session 2 with a twenty-year old mind reader. While initially resistant to the idea of hearing other's thoughts, the more she talks about her ability, the more she is able to believe that diagnosis. 

Season 1, Episode 5 - Session 10 with a teenage empath. His continued exposure to a fellow student may help him learn to control his ability.