The key is to remove the other name and see if it still makes sense: “This is a picture of I” doesn’t, so it should be “Krissy and me”.
But if “I went to the store” and Krissy joined me, then “Krissy and I went to the store” (vs “Me went”)
The key is to remove the other name and see if it still makes sense: “This is a picture of I” doesn’t, so it should be “Krissy and me”.
But if “I went to the store” and Krissy joined me, then “Krissy and I went to the store” (vs “Me went”)