The sentence is incomplete, but the beginning clearly states the speaker's name. To make a complete sentence, you would need to add something like:
* Me llamo Robert y tú, ¿cómo te llamas? ("My name is Robert and you, what's your name?")
* Me llamo Robert y tú, ¿cómo estás? ("My name is Robert and you, how are you?")
Let me know if you'd like more examples!