I cold-call a lot of customers，you know—just call up potential clients to try to make sales.Mainly when I cold-call somebody I try to set up an appointment—nobody’s going to buy your product or service over the phone，you know？The key for me is to make sure I do some research beforehand，and try to add a personalized twist.Like I’ll try to have some background on the company；ideally，I try to find any recent news they may have generated—that works really well as a conversation starter.If I can’t find something on the company，I’ll try to find something on the company’s industry.A lot of times，I’ll make them aware of an article they might be interested in.If they haven’t seen the article，I offer to bring it by their office，and while I’m there，tell them about our services.At any rate，the cold-call gets my foot in the door，which is all I can really hope for.

What is the speaker mainly talking about?（）