To be a good citizen it is importan to know the rights and thre responsabilities. A good citizen would have respect , tolerance, love , generosity for each other, also to take care of the enviroment as an ecologist citizen.
Personally I considerate myself a no active citizen because until this moment society has given me everything and I couldn't repay it that so that's important for a balance
So to be a good citizen is important give and receive, be friendly, has tolerance and the respect also be aware of the problems and try to handle in an individual way