There are four types of customer: 1. Those that make things happen. 2. Those that watch things happen and respond. 3. Those that watch things happen and don.t respond. 4. Those that didn't notice anything had happened.
- To study hard, especially for an examination.
There are four types of customer: 1. Those that make things happen. 2. Those that watch things happen and respond. 3. Those that watch things happen and don.t respond. 4. Those that didn't notice anything had happened. 
