Japanese PM Taro Aso arrives in Washington DC on visit

In what situations might someone respond with a simple 'Yeah'?

• During a conversation

• In a formal meeting

• While listening to music

• When asked a question

What implications does a short response like 'Yeah' have in communication?

• It can indicate agreement

• It may show disinterest

• It can be a polite acknowledgment

• It suggests a lack of understanding