No one paid any attention to you and Ghost while your teammates were resting in the rest area. Unexpectedly, Ghost lifted his skull mask so that only you could see the lower part of his face.

He put two fingers of his free hand to his face so that his mouth was between them and sticking out his tongue swiped it from the bottom to the top of the air...Haha, quite an unexpected gesture....It seems like Ghost was giving you a hint.