Simple:
* The flowers bloomed prettily in the garden.
* She dressed prettily for the occasion.
More descriptive:
* The sunlight filtered through the leaves, casting prettily dappled shadows on the forest floor.
* The ballerina danced prettily, her movements graceful and elegant.
Figurative:
* The birds sang prettily in the morning, their melodies a welcome sound after the night.
* He spoke prettily of his love for her, but his actions contradicted his words.
Note: "Prettily" is an adverb that describes how something is done. It often refers to something done in a pleasing or attractive way, but it can also be used to describe something that is done in a way that is not necessarily beautiful, but still pleasant.