Mariano Melchor-Galindo, 35, of 4 Poplar St., was arrested Wednesday after the girl gave East Hampton Town police "a detailed description" of the suspect, Chief Edward V. Ecker Jr. said in a statement.
Melchor-Galindo was arraigned Thursday in East Hampton Town Justice Court.
Details of his arraignment were not immediately known.
Police said the incident occurred near Parson Place at about 3:40 p.m. Wednesday.
Police did not detail what Melchor-Galindo said to the girl, but said the comments "scared, alarmed and frightened her" and that she immediately ran home and told her parents.
In a statement released Friday, Ecker said the parents of the girl, whose identity was not released, immediately called police, who located Melchor-Galindo and arrested him.
It was not known whether Melchor-Galindo was represented by a lawyer. Calls to Springs School Principal Eric Casale were not immediately returned.