Yes, being aware of cultural nuances is important when conversing in Greek. Greeks value personal connections and often engage in friendly small talk before getting to the main point of a conversation. It is common to use gestures and maintain eye contact during conversations. Additionally, addressing people with their first name, followed by the respectful form of 'κύριε' (Sir) or 'κυρία' (Madam), is considered polite. Being aware of and respecting these cultural nuances can help you build rapport with Greek speakers.