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]
(..) and it still hurts. Ah, but there's more. Your clothes. Recently laundered, but everything you're wearing is at least...three years old? Keeping up appearances, but not planning ahead. And here you are on a kamikaze murder spree. What's that about? Ah... three years ago. (..)2010 TvShow: Sherlock Title: A Study in Pink Season: 1 Episode 1