Cards dealt face down in Stud, seen only by you.
Two on 3rd street and one on 7th street, seen only by you. The marks under the cards on the table are Down (face down), Door (the first face-up card, the door card) and Up (the face-up cards on 4th to 6th). A pair in the hole (buried pair) is hard for opponents to read. Example: (K♠K♥) 4♣ looks like just a 4 to your opponents.