* I (subjective) / me (objective)
* You (subjective/objective)
Let's break down why:
* I is used when the pronoun is the subject of a verb (the one performing the action):
* I went to the store.
* Me is used when the pronoun is the object of a verb or preposition (receiving the action):
* She gave the book to me.
* You can be used both as the subject and the object of a verb:
* You are going to the party.
* I gave the book to you.
Let me know if you have any other pronoun questions!