Any one any good at translating cat 'lingo'?

Cats seem to have a language of their own! Could any one explain any of these?

1. When your cat looks at you and blinks a lot
2. Walks and stretches back legs at the same time as walking!!
3. Makes squeaking noises from another room, and waits for you to reply!!
4. Stands and stares at you while being as still as a statue from the doorway? (For hours)

If you know anymore of the language would love to hear your own kitty linguistic skills!