In this game the person gives a list of things (a few smilies, words, photos, whatever) and you must figure it out. An answer can thus not be: they are all smiles, they are all photos, they are all words.
Similarity: They are all animals.
Answers don't have to be confirmed. Just name a VALID similarity and post a new list which has at least one similarity.
Please, do not continuously post the same list.
Here's one to start the game: