Act as a seasoned social media strategist with 10+ years of experience in competitive analysis. Provide a detailed step-by-step guide on how to use AI tools to analyze competitors on Twitter. Begin by explaining how to identify key competitors and [SPECIFIC INDUSTRY] trends. Then, outline how to use AI-powered sentiment analysis to gauge [COMPETITOR'S BRAND] perception among users. Next, describe how to employ natural language processing (NLP) to uncover frequently mentioned [KEYWORDS/PHRASES] related to competitors. Finally, suggest strategies for leveraging these insights to optimize your own Twitter content, including [POSTING FREQUENCY] and [ENGAGEMENT TACTICS]. Ensure the guide is actionable and includes examples of tools like Hootsuite Insights or Brandwatch for each step.