The playground 'gives every appearance of' being a safe place for children [=the playground appears to be a safe place for children], but a tragic accident occurred there recently.
He has announced that this will be his final/last 'appearance' with the band. [=the last time that he will perform in public with the band]
I wasn't expecting him to come and was surprised by his sudden 'appearance'. [=I was surprised when he suddenly appeared/arrived]
(..) She is hysterical. Very excited. She is wild. And you got to take it easy. You got children. I'm not saying to go back to her right now, but you got to go back. You got to keep up appearances. The two of them come to my house every day. I can't have it. I can't do it, Henry. I can't do it. (..)1990 Goodfellas