Eric has a unique way of speaking. he pauses a lot and speaks in a slow monotone. this characteristic way of speaking is known as

Linguistic style. Linguistic style is a person's unique way of speaking. Every one whether they do it consciously or not, every one has a characteristics way of talking. I can almost identify a friend 20 miles away when he laughs. Although It differs from person to person. Some people can hardly speak silently while others like Eric seem to stammer a bit. Linguistics style is basically the style of speaking or communication.