How do you build trust in your department?

Its not easy to build up trust with any body especailly in your department but by loyality to your work and the hard work that you give and by the experience trust will be given easier.

to give them confidence as well as good working environment.so it would help u to get his/her trust and it will boost you as well.

Perhaps by listening and appreciating others.
Appreciating concerns irrespective of how small or big it may be and if possible by giving a helping hand.
Encouraging others for suggestions and feedback irrespective of how valuable it may be.
Respecting human as it's the most valuable resources.