The rude young boy stared at the overweight woman as she ate.
I stared at my brother at the store
The preposition in this sentence is the word "at". As this word helps show and focus the sentence to the main subject, or point in the sentence, it is the only preposition.
She stared uncomprehendingly at him.
He stared at the boy dreadfully with anger. This is a sentence using the word dreadfully.
She stared timidly at her uncle.
The noun in the sentence is students.
I stared at him angrily after he threw the ball at me.
he stared at her eyes powerfully
He stared in astonishment as the streaker ran down the street.
The puppy stared at me, a doleful look in its eyes.
I stared at the amorphous clouds. Notice the spelling, please.
I placidly stared at my husband; content to be with him forever.