You purchased a list, and John Smith is now in your database. He has not, however, expressed to your company any interest in your products or services. As such, he falls into the category of “suspect.” A call to John is cold. And, understandably, whether they are the initiator or recipient of such a call, most people prefer not to engage in this activity. Luckily, today you can use LinkedIn to warm up the call and make the experience more pleasant and fruitful to both parties. Here are some tips to get started.