Should you use I or me in that sentence? Let's get the names of those things out of the way. "I" is a subject. It can do action. "Me" is an object. Actions can be done to it.
Most of us are good with simple sentences like "I went to the store," or "He gave the book to me."
Where we get in trouble is when we add extra people. "He gave the book to Meg and I," or "He gave the book to Meg and me." It's easy to decide which is correct if you take out Meg. Most of us know that "He gave the book to I" is wrong.
Lots of people say things like "Jack and me went fishing." Again, take out Jack, and you'll know in an instant it should be "Jack and I went fishing."
There are other permutations of this same problem of mixing subjects and objects. I'll cover some of those in other hints.
