As the old saying, “You only have one chance to make a first impression," goes, make sure it counts in your favor.
People tend to hang on to their original image of who you are for a very long time.
However, if you get down to the nitty gritty, most people look at business etiquette and manners as essential to even get to the bottom line.
There is a social element to most offices, so observe protocol and remember that your behavior will affect your future.
News flash: It's not old fashioned for men to have good manners. Remember that proper etiquette applies to all people, including men, women, and children.