No matter the field or industry you're in, the above words, or more accurately, the above word repeated three times, is key to close any kind of business transaction you are involved in. Whatever it is you do, you must repeat and memorize this word: Relationships.
It is not easy to meet people and maintain good relationships with them; in fact, it is a skill not many of us possess. However, it is more important than any technical ability you may have. Most business failures happen because of someone's incapacity to communicate and relate to others effectively, not because of a lack of technical mastership.
One of the most important elements of a good relationship is respect. You cannot demand respect from others. You either earn it with your words and actions, or you are lying to yourself thinking that you are automatically respected just because of your position. In this last case, eventually, the volcano will erupt, and most probably the lava will swallow you up, erasing every trace of your existence. And read these words: No one will care.
We can only control our own behavior, thus, the only way to get respect is by giving it to others with sincerity. You must start with yourself if you want to see a change in others. Stop negative criticism and start providing valuable and caring feedback. Be helpful and encourage others to be their best. Honor and praise the good. Do not pay attention to what others say, and never label a person. Work under the premise that everyone will positively surprise you and that everyone is worthy. Be open and welcoming. Learn to separate people from their actions, as everyone can make a mistake, even you.
You will get more out of the behaviors you reward than out of the ones you repress. Start considering which behaviors of yours are affecting others' behaviors. Be a leader, not a boss.
When it comes to business networking, listen, really listen to people. You will learn a lot and understand even more. Put yourself in other people's shoes and consider their opinions. The more you learn, the more powerful you are; the more humble you are, the stronger you get.