How do/can the different KICs communicate/correspond to boost cross innovation processes for example?

Answer: 

Since EIT grants are financed by EU public funds, EIT beneficiaries are required to actively engage in communication activities, to promote their activities and achievements and to publicly acknowledge the EIT and EU support, all contributing to building the EIT Community brand. For further guidance on communicating EU research and innovation, please refer to the Online Manual on the EU Funding & Tenders Portal.