A young man with a happy expression is tossing bits of colored paper into the air.
A young person  with a happy expression is tossing bits of colored paper into the air.
A young woman with a happy expression is tossing bits of colored paper into the air.
There are no meadows in the Italian Alps.
He said, "Many men are happy, and everyone knows it."
they are kissing
The architectural style of the cathedral combines two different architectural styles.
People are at a hotel.
I have never shot a man before, he added seriously.