I have 'mixed emotions' [='mixed feelings'] about doing this. [=I'm not sure if I want to do this or not]
He's always found it hard to express (his) 'emotions'. [=to show his feelings]
The defendant showed/displayed no 'emotion' when the verdict was read.
(..) Guns down! Guns down! Emergency on that ambulance! - He's playing games. - Aw, no shit. We must forget our emotion. - We must focus on the details - I feed off my emotions. How's that? Are you listening to me? Yes, I can hear you. - Excuse me. (..)1995 Se7en