Venga, chico.
You can say "¿eres un niño?"
Good boy = Chico bueno
"amante"
papa
To say come here girl in Spanish you would say, ven aqui, chica. You could say come here boy by saying ven aqui, chico.
you say it like this: clease boa
Niño guapo
Mal muchacho.
Niño chicita
mi hijo
come to is venir, and Come is Ven
come and see in spanish is "Venga y vea"