People always talk about how dogs are man's best friends and cats just don't care. But as any cat owner will tell you - that is not the whole truth. Cats just show affection in a less obvious way. For them it is trust that is most important, and when you earn that trust, they will show you lots of warmth and cuddling, and may start following you around the house.
Here are some photos of cats that trust their owners completely, and so have become great friends to have around!