participative
adjective
HR, WORKPLACE uk/pɑːˈtɪsɪpətɪv/ us/pɑrˈtɪsɪpeɪtɪv/ (also participatory)based on the idea that things can be achieved more easily if everyone works together and is involved in making decisions:
She has a very participative style of management.
This will be a highly participative event, and you will be expected to work in groups and to contribute ideas.