Growth hacking involves constant testing, optimization, and experimentation across multiple online channels and properties to drive growth. It is an iterative process that begins with setting up analytics to establish baselines and monitor key performance indicators. Growth hackers then explore different user acquisition strategies, focusing on conversion rate optimization techniques like A/B testing. The goal is to efficiently move users through the funnel and identify the combinations of ideas, content, and campaigns that are most effective at acquiring and retaining users over the long run. It requires ongoing testing and assessment to refine strategies and ensure growth efforts remain aligned with business goals.