pos

well... (colloquial for pues, Mexico)

—¿Vas a venir a la fiesta? —Pos sí, pero llego tarde. 'Are you coming to the party?' 'Well, yes, but I'll be late.'

Pos no sé, tú dime qué prefieres. Well, I don't know, you tell me what you prefer.

Pos ya ni modo, tendremos que esperar al próximo camión. Well, there's nothing for it, we'll have to wait for the next bus.