Enum.GetName() for bit fields?

string s = twoOfThree.ToString();

or:

Console.WriteLine(twoOfThree);

If you want to do it manually, split the value into bits, and test what flags you need to add to make that flag. A bit of coding, but not much.

Why not twoOfThree.ToString()?

twoOfThree equals 3, and ACherryIsA has no related enum member for this value...