I just bought the game and am trying to play on my Mac. I'm not really a gamer or a proficient mac user and am not sure what to do to get items into my inventory. I can hear Zoe's inner monologue about them, but can't pick up things- such as the chart at the foot of her bed. Can anyone direct me? I'm sure this is a basic question but I did search before posting this and didn't exactly get an answer. I'm playing it via Steam.