The qualities of [[Self]] ([[The 8 C's of Self]], [[5 P's of Self]], among others) can be displayed by [[Parts]]. So how can we tell the difference between [[Self]] and Self-like parts? The level of access we have to these qualities is different, especially when we are in [[Self-essence]]. We may also notice that along with the Self-like qualities we notice, we feel an agenda. [[If you have an agenda, you're blended with a part]].
And [[Parts]] can access [[Self]], because [[Self is connected]] with all, including parts. ([[It's all awareness]].)