simple answer is, if you need to ask the question here, then you don't understand cookies - and don't need them on your site.
Disable them. They are intrusive unneeded intrusions on privacy
I rather suspect that the owners of very many web sites have no idea whether or not their site uses cookies.
One might guess for example that if your site uses third party services such as Google advertisements or Google Maps there may be some cookies involved ... but how would you know, and how would you control them? Is it be the responsibility of the third party service provider, wherever they are in the world, to provide features to cope with the new law, or is the only safe way to stop using these third party services? What if you do actually manage to check, and discover that the third party service provider doesn't use cookies ... but in eighteen months' time they start using them, and don't tell you?
Etc etc. It will be interesting to see what does and doesn't end up in the courts.