1. When there's an ethical choice

Ask for advice or err on the side of caution. There is often a grey area. It pays to show that you recognise this.

2. Keep surprises to a minimum, even nice ones

Better to give hints and indications beforehand. Otherwise people will always be wondering what you are going to spring on them next.

3. Manage your mood

Inexplicable elation can be just as unnerving as quiet agitations. Trustworthy people don't take their mood out on others.

4. Make it apparent when you have delivered on a promise

Give plenty of notice if you think that you are going to let someone down.

5. Outline your reasons when you can

Once people understand how you think they are much more likely to trust your judgment when you don't have time or can't explain.

6. Listen to criticism and be seen to take it on board

It doesn’t have to be wholeheartedly accepted but enough to show that you are willing to change.

7. Give thanks

When people believe that they will be appreciated they tend to be more trusting with their time and support.

8. When someone asks for personal advice

Put your own agenda to one side and base your recommendations on what you think is in their best interest.

9. Give people your undivided attention when they are talking

Summarise or ask specific questions to show that you've been listening.

10. When something might be about to go wrong

Go out of your way to help out, even when it isn't strictly speaking your responsibility.

11. Admit when you don't know the answer

There’s no need to be overly-apologetic. We all have gaps in our knowledge, but it’s better to confess ignorance than be caught bluffing.

12. Show that you are thinking along the same lines

Demonstrate that you share the same goals. Discuss subjects you agree on or are both enthusiastic about.

13. Building trust takes time

Be consistent, keep at it and results will follow.