Timing is key when it comes to Pinterest. From taking time to properly set up your Pinterest account, to timing your pins to attract the best customer responses. What this calls for is some serious research. You should know when your ideal customers are online, know what they are pinning and when they are pinning. This takes time, but the more thorough a job you do, the better the response you get. According to Pinterest, high traffic hours are from 2-4PM as well as evenings and weekends. Pins stay online for a few days or weeks so don't feel pressured to be pinning like crazy everyday. A couple a day will suffice.
Don't be afraid to interact with your customers on Pinterest. Even though it is a business tool, keep in mind that Pinterest is still a social media network. So be social. Don't just pin, but repin. And also pin things that are not always about you directly, but other companies in your field or interesting things that have to do with your business. Also, don't be reluctant to follow interesting users. By following users your company begins to build a community of users interested in what you have to pin, and becomes more of a realistic and human profile, as opposed to just a company page.