Be inclusive – Avoid forming cliques that might exclude people, giving colleagues the silent treatment or speaking to people in a condescending way. Those are forms of bullying. Encourage healthy relationships in the office.
Be attentive – Don't check your phone in meetings or when someone is talking to you, not even a peek from time to time. Look at the person who is talking to you, stop texting or typing on the keyboard and turn away from your computer screen. Pay full attention to the person in front of you.
Be punctual – Demonstrate professional courtesy by showing up on time and respecting deadlines.  Being late sends the message that you don’t have respect for other people's time or schedules.