Broad smile on the face.
例句: When my little sister sees her father come back from work she always has a broad smile on her face.
Beaming from ear to ear.
例句： Children were beaming from ear to ear when they saw ice cream.
Why the long face?
例句：You’ve just got a new job, a new house – you should be happy! Why the long face?
He was wearing a frown.
例句：When Elena walked off after the argument with John he was left there wearing a frown on his face.
例句：She took another drink of his coffee. ‘Awful,’ she said with a grimace.
She gave me a dirty look.
例句： I got a dirty look from the teacher when I cracked a joke in class.
He was purple with rage (fierce anger)
例句：She was purple with rage when she saw the teacher scolding her child.
If looks could kill
例句： I’ll never forget the expression on my boss’s face when I turned up late for work fourth day in a row.
例句：She raised her eyebrows when she saw me with Karin at the restaurant, she didn’t expect us to be there.
Looking down the nose at someone
例句：Just because he’s rich he looks down his nose at us.