Presenting ourselves as multiple person

We can absolutely present ourselves as multiple persons in our writing. You use different tones, words, and topics to present yourself differenetly. You can write with a formal tone using sophisticated words in order to portray yourself as professional and intelligent. Or you can write with more common words and write about things everyone can relate too. However, we cannot present ourselves as someone we are not. We can only portray ourselves to how intelligent we actually are. Our vocabulary choice and rhetoric style is our own, and while we can choose which style to use, we cannot choose a style we don't possess.