Management-issues has a great article that asks the question “Does your behavior damage trust?” and list the following 25 behaviours that contribute to creating mistrust within your team:

1. 
   You fail to keep your promises, agreements and commitments.
    
2. You serve your self first and others only when it is convenient.
    
3. You micromanage and resist delegating.
    
4. You demonstrate an inconsistency between what you say and how you behave.
    
5. You fail to share critical information with your colleagues.
    
6. You choose to not tell the truth.
    
7. You resort to blaming and scapegoating others rather than own your mistakes.
    
8. You judge, and criticize rather than offer constructive feedback.
    
9. You betray confidences, gossip and talk about others behind their backs.
    
10. You choose to not allow others to contribute or make decisions.
     
11. You downplay others’ talents, knowledge and skills.
     
12. You refuse to support others with their professional development.
     
13. You resist creating shared values, expectations and intentions in favor of your own agenda; you refuse to compromise and foster win-lose arguments.
     
14. You refuse to be held accountable by your colleagues.
     
15. You resist discussing your personal life, allowing your vulnerability, disclosing your weaknesses and admitting your relationship challenges.
     
16. You rationalize sarcasm, put-down humor and off-putting remarks as "good for the group".
     
17. You fail to admit you need support and don’t ask colleagues for help.
     
18. You take others’ suggestions and critiques as personal attacks.
     
19. You fail to speak up in team meetings and avoid contributing constructively.
     
20. You refuse to consider the idea of constructive conflict and avoid conflict at all costs.
     
21. You consistently hijack team meetings and move them off topic.
     
22. You refuse to follow through on decisions agreed upon at team meetings.
     
23. You secretly engage in back-door negotiations with other team members to create your own alliances.
     
24. You refuse to give others the benefit of the doubt and prefer to judge them without asking them to explain their position or actions.
     
25. You refuse to apologize for mistakes, misunderstandings and inappropriate behavior and dig your heels in to defend yourself and protect your reputation. 

Looking at the above list how are you doing? Are you creating or destroying trust?