Connecting and bonding with your colleagues is the key to a friendly and creative environment. How do you encourage more open environment?

Respecting each other and give help in difficult situation should encourage colleage to work openly..

Too much friendly at work envoirement may reduce the productivity. so be helpful , respecting and give praise when required is key for openness.......

we can use some strategy to  increased connecting and bonding such as :

job enrichment : its a motivational strategy that involves making the job more interesting in order to motivate employees

job rotation : its A motivation technique that involves moving employees from one job to another

job enlargement : its a motivation technique that involves combining a series of tasks into one challenging assignment

Respecting and Appreciation , will urge encouragement .

Open communication & recurrent meetings,

I would usually stick to being friendly, positive & helpful. These attributes have a contagious effect on the long term, even on moody people. Moody people are hard to adapt to & they can cause you having swinging moods yourself in your attempt to satisfy them. Try to adapt, but if you can’t don’t be too harsh on yourself.  

Also, I would try to build collegial relationships slowly without crossing lines too quickly (under the name of being casual) or being too distant & detached (under the name of being formal). Relationships that are built slowly usually last longer.