Sustainability project in one of  the metro stations.

First,  setting up a small event in a cafe inside the metro. We  decorate the space with plants and other nature-themed stuff to create a cosy and inviting atmosphere.

Then, having some interactive activities to engage people passing by. 

Things like a quiz about sustainability, colouring pages for kids, or even just a place for people to share their thoughts on what sustainability means to them. We could also set up a little stand where people can make a pledge to make one small change to help the environment.