air; atmosphere
mood; situation
someone with no presence; someone who doesn't stand out at all
to read the situation; to sense the mood; to read the room
この部屋の空気が悪いね。
The air in this room is bad.
彼は場の空気を読まない人だ。
He's the type who can't read the room.
朝の新鮮な空気を吸おう。
Let's breathe the fresh morning air.