Look at the top 4 cards of your deck. Add one of them to your hand, put one into your cemetery, put one on top of your deck, and put one on the bottom of your deck.
Strike: Look at the top card of your deck. You may put it into your cemetery.
QDo I reveal the card added to my hand by this follower's Fanfare ability?
ANo, you don't.
QIf I have 3 cards in my deck, how do I resolve this follower's Fanfare ability?
ALook at the top 3 cards of your deck, add 1 of them to your hand, put 1 into your cemetery, then put 1 on top of your (now empty) deck. You don't put anything on the bottom of your deck.