Look at up to 4 cards from top of your Library, search for up to 1 ::Lab Member:: Character, reveal it, put it in your hand, and put the rest in the Waiting Room.
Steins;Gate Booster Pack
Looking for the whole list? Click here: Steins;Gate Booster Pack Translation > (Shift_JIS encoding. For cardsleeve inserts, click "Inserts" to the left)