Keep saying hello to people. They will be the differentiator for you for the rest of your life.
Gary VaynerchukMy dad is like a cactus - introverted and tough. I'm a people person, like my mom, but I got my competitiveness from my dad. He came to this country from Belarus with nothing and built a real business. He's my hero for giving me that need to run a business and for having enormous confidence in me.
Gary Vaynerchuk