The girl smiles at the boy.

Meaning: This means a girl is showing happiness towards a boy.

Choice of Words: Girl is a person of the female gender. Smiles means to express happiness or amusement by turning up the corners of the mouth. At indicates the direction or focus of the smile. Boy is a person of the male gender.

Alternative Expressions

The girl smiled at the boy.

Meaning: This sentence describes an action that happened between two people in the past. The girl showed happiness or amusement by turning up the corners of her mouth, and she did this towards the boy.

Choice of Words: The is an article that refers to a specific noun. Girl is a noun that refers to a young female person. Smiled is the past tense of the verb smile, which means to show happiness or amusement by turning up the corners of the mouth. At is a preposition that indicates a position or direction. The is used again before boy, which is a noun that refers to a young male person. The sentence uses the past tense, which indicates that the action happened in the past.

A girl smiles at a boy.

Meaning: This sentence describes an action that is happening between two people. A young female person is showing happiness or amusement by turning up the corners of her mouth, and she is doing this towards a young male person.

Choice of Words: A is an indefinite article that refers to any noun. Girl is a noun that refers to a young female person. Smiles is a verb that means to show happiness or amusement by turning up the corners of the mouth. At is a preposition that indicates a position or direction. A is used again before boy, which is a noun that refers to a young male person. The sentence uses the present tense, which indicates that the action is happening now.

Related Expressions