Once a week, have a short meeting with your team (at work, on a project, or even at home with family) to share ideas and plan together for the coming week - teamwork requires communication.

Every week, initiate a joint activity with someone - it could be cooking together, walking in the park, or just having coffee with a friend, because the simplest things are more fun when done together.

When you see someone struggling alone, offer them your help - even if it's just to be with them or listen, because sometimes just the presence of someone else makes all the difference.