I vs Me
Mistakes made with the two English pronouns I vs. Me are very common. This article will attempt to make the difference between these very simple with examples.
I is the first person singular subject pronoun, which means that it refers to the person performing the action of a verb.
Note: "we" (plural) is equivalent to "I" (singular).
Me is an object pronoun, which means that it refers to the person that the action of a verb is being done to, or to which a preposition refers.
Note: "us" (plural) is equivalent to "me" (singular).
This confusion usually occurs when you have I/me connected to another pronoun or name with "and" or "or." I believe that the confusion begins when someone says something like "Michelle and me are ready" and that is corrected to "Michelle and I are ready". The speaker then thinks, "Oh, the word 'and' means that I should always use I." This is not the case. "And" has nothing to do with it; the reason you say "Michelle and I" in that sentence is that "Michelle and I" are the subject. If they were the object, you would use me: "He told Michelle and me to get ready."
If you are not good with grammar concepts like subjects and objects, there is still a very easy way to decide whether to use I or me: try out the sentence with just I or me (or if you need a plural, we or us—"we" is equivalent to "I" and "us" is equivalent to "me"):
Do not use a subject pronoun and object pronoun together.