It means "the girl will look at the handsome boy"
la chica = the (little) girl chico = (little) boy
"Chico" means a boy, child, infant; while "Chica" means a female, child, infant. The difference is one is a male and one is a female.
Chica is translated to its close relative, "chick", or young woman, in English.
Because I'm talking with a cute guy.
Probably chico de la madre. The son of the mother.
The phrase "un chico, una chica que practica deportes" translates to "a boy, a girl who plays sports" in English. It implies a reference to a boy and a girl who are both involved in athletic activities.
In Iberian Spanish, mirar means to look. In Mexican Spanish, mirar means to see, as well as to look.
It means boy in Spanish. Chico also means boy in Spanish. Muchacha and Chica mean girl is Spanish.
Guapa is a feminine adjective meaning pretty or good looking. La chica es guapa. (The girl is pretty.) Guapo, it's masculine counterpart, means essentially the same thing: Handsome or good looking.
"Look or See"
Un in Spanish is the adjective a in the sense of one in English. Una in Spanish also means a or one in English. Unlike Spanish, English adjectives do not have masculine and feminine forms:un chico guapo - a handsome lad / onehandsome laduna chica bonita - a pretty girl / onepretty girl
It means "beautiful" when applied to a male object. Usually when speking of a person, you would use "guapo".