It is common knowledge that communicating across continents can be a challenge because of cultural differences. It's the same when communicating with sales people. These are the main differences to "normal" people as I see it.
- A more liberal approach to the truth or maybe just a more ignorant attitude towards facts. They are often only interested in the good story. I you want to hear about the perfect world or solution, do contact a sales person.
- A low signal to noise ratio.
The goal for communication for a sales person is the communication itself. Whether any useful information is communicated is often not important. The entropy of a conversation can therefore be very low. Often it's just not worth the communication.
- Have no interest in, and no knowledge of what they speak of. The best feature of a sales person is his ability to small talk. Most of the time he won't have the slightest idea about what he is selling.