Por favor, vuelve.
You could say, gracias, por favour, ven de nuevo
Repita eso, por favor
Otra vez, por favor.
They say please call again because this is a more formal and polite way of saying please come again. This was the old fashioned way of stating the same thing.
Vuelva pronto.
teri por favor which means teri please in spanish
"Please" in Spanish is "por favor".
the professer says come on please if you say no again he keeps asking
"¿Puede venir el Jueves, por favor?"
¿Por favor puedes ir a trabajar hoy?. That's the way you say it.
"Why?" (same as "how come"?) in Spanish is "¿Por qué?" It is pronounced "poor KAY?" Please see this site for confirmation of the translation: http://www.answers.com/library/Translations
You could say "Viene de nuevo", "vuelve otra vez", "regrese por favor".