Culture learning involves acquiring social knowledge and skills to function in a new society. Elements like non-verbal communication, social interactions, and relational communication vary between cultures and can lead to failed interactions if not understood. People traveling to new cultures may experience communication apprehension if not familiar with cultural differences in areas like etiquette, conflict resolution styles, and non-verbal cues like gaze, touch, and gestures. Understanding such hidden rules and conventions is important for smooth intercultural interactions.