it was the only time i used the fonz. >> the fonz just appeared in front of me. >> the fonz could do anything. so when ralph and potsie accepted a challenge to jump over a shark, no problem. >> i learned to water ski on lake. >> those are clearly you water skiing. >> oh, they are me. i did everything but the jump. if you watch that episode, i land on the beach and s out of the skis, and there i am, and i'm smiling. half that smile is the fonz going hey, look at that, i did it. and the other half is henry going oh my god, you did it! >> but while the yale drama grad was playing the epitome of cool, you henry winkler were not that much like the fonz. >> no. i don't ride a motorcycle. i have never ridden a motorcycle. i finally realized that cool is also just being authentic. that is powerful. but when i changed my voice, i was like it unlocked me. i became like i could do anything, you know? my mind just was like on fire. >> at the same time, henry was dealing with a life-long struggle with dyslexia. he didn't even know what it was until his own son was diagnosed. >> the dyslexia was s