Simple:
* The surly bus driver refused to let me on without a ticket.
* The dog looked surly and wouldn't come near me.
More complex:
* The surly cashier muttered under her breath as she counted out my change, her expression revealing a deep-seated annoyance with the world.
* Despite his surly demeanor, the old man had a heart of gold and was known for helping anyone in need.
Figurative:
* The weather turned surly, with dark clouds rolling in and a cold wind whipping up.
* The once-peaceful neighborhood had become surly, plagued by crime and a general sense of mistrust.
Remember, "surly" typically describes someone who is bad-tempered, unfriendly, and possibly even rude.