Interpersonal Communication
What this domain tests
Interpersonal tasks simulate genuine exchange: a short message you must answer, or a conversation whose turns you must complete. Raters score task completion, sociolinguistic appropriateness, vocabulary, and grammar together - polish alone will not carry a response. The core skill is sustaining an exchange: acknowledge what was said, add information, and return a question.
Concepts to command
- Register and address forms: tú with peers, children, and often coworkers; usted with elders, officials, and new acquaintances; ustedes/vosotros in the plural. Choose once and stay consistent.
- Speech acts: inviting, declining politely, apologizing, requesting, negotiating, congratulating, expressing sympathy.
- Politeness formulas: ¿Podría...? / Le agradecería que... / ¿Te parece bien si...? / Lo siento, pero...
- Turn-taking cues: bueno, pues, oye, mire, claro, de acuerdo - and the expectation that you react to the most recent turn.
- Repair and circumlocution: no sé cómo se dice, pero es lo que usas para... beats switching to English.
- Culture-bound conventions: length of greetings and leave-takings, attitudes toward punctuality and meal times, formality with strangers.
Traps
Delivering a monologue with no reciprocal question. Responding to an invitation without clearly accepting or declining. Switching from usted to tú mid-message. Translating English idioms literally - tener un buen tiempo for "have a good time" (use pasarlo bien / divertirse), soy de acuerdo instead of estoy de acuerdo. Omitting an element the prompt names (two questions, a reason, a suggestion). Leaving an item blank: a flawed Spanish answer outscores silence.
Rule of thumb
Mirror your interlocutor - match their address form and level of formality - then answer, add, and ask.
Worked example
A host mother you have just met writes: ¿Te gustaría cenar con nosotros el sábado a las nueve? Strong reply: Muchas gracias, señora. Me encantaría acompañarlos el sábado. ¿Puedo llevar algo, como un postre? Formality is maintained, the invitation is accepted, new information is added, and a question comes back. A bare Sí completes nothing.