The way I communicated with my co workers and my boss is in WhatsApp. Im in three group chats. One is with the whole company, the other is with  videographer and photography, and the next group chat is my department, graphic design. Whenever my department is assigned a task, we get the work done and send it to the group chat and asked for feedback. That way it builds connection and see what fits or not. Recently, my department met the new leader for our department and spoke about special projects and we asked questions for better understanding. At first, everyone was shy and then we got comfortable each others since we asked questions and some feedback on communications and work.