I find that helping team members to get to know each other outside the work context can help create bonds between colleagues which might otherwise not exist. This is usually best done by getting your team out of the building together, whether it’s a breakfast or lunch, some relevant team activity (think visits to interesting exhibitions or shows etc, not mandated “team building exercises”), post work drinks etc. I’ve found that these sorts of things help bring down walls and allow team members to understand common interests between each other, even simply realising that their colleagues are much more than just what their job title might suggest!
Furthermore, as a leader/manager, you should take a genuine interest in people’s lives outside of the workplace. Each of your colleagues has arrived with a different set of ways of working and expectations driven by past experiences, both professional and personal. Gaining a stronger understanding of these factors for each colleague will create trust in your ability to lead, as well as enhancing the sense of safety within your team.