These tips were published by Entrepreneur.com.
Treat others like equals
You can only earn respect if you yourself respect other people. Treat everyone with dignity and also treat people on a lower level as equals.
Support people around you in their strengths
One of the most likeable things is when you support people around you in what they enjoy or are good at.
Learn to listen
When talking to someone, pay proper attention to what they are saying. Remember the key points of your conversation and refer to them next time you speak to the same person.
Be confident in what you are good at
People will not respect you and your skills if you yourself do not believe in them. Have faith in the skills you are certain you have.
Never make excuses
Never make any excuses: accept accountability for your actions and the results of your work.
Spread positive vibes
You will never earn respect if you always look at the world around you in a negative light. Spread positive vibes, always inspire the people around you, and generally have a positive outlook on the world.