Generally Americans tend to be fairly informal and they often address each other by their given names on the first meetings. They also tend to abbreviate a lot. Mass.Ave, for example, means Massachusetts Avenue. So, don’t be surprised and you may ask what these abbreviations mean.

Переведите пожалуйста,нормальный перевод,без помощи переводчиков типа гугл или яндекс(и им подобным)