1. The document discusses communication strategies used by second language learners when facing difficulties communicating in a less familiar language. It describes classifications and typologies of different strategies. 2. Key strategies discussed include circumlocution, approximation, appealing for assistance, and avoidance techniques. The implications are that explicitly teaching these strategies can help learners communicate more effectively. 3. The case study analyzes the strategies used by an interviewee placed at an A2 language level, such as paraphrasing, borrowing words, and asking for clarification.