same anon:
Thank you! Don't expect anything for a while, at least until June (uni... cries...) but the idea just grabbed me and im really excited to do something with it.

And no anon I completely agree. I can understand where ur concerns might come from but I assure you Foggy's personality will remain completely his own, and people will continue to like him for who he is. (people don't love you just because ur charismatic, and you don't win legal cases on charm alone).
I'm mostly interested in Foggy's reaction, as a guy who strongly believes in the checks and balances of a legal process. Perhaps not really fully understanding his power and freaking out a bit. Especially him being at least somewhat aware of how psychology works and feeling at least somewhat conflicted about how some lawyers win cases based on Image management.

I also wanted to explore how this power would have affected Foggy's socialisation. Like noticing what draws people to him and perfecting the art of modifying behaviour for certain people. Acting as mediator for people (which leads him towards Law perhaps?)
Like any mutant his power is an integral part of himself and his identity (even if he wasn't aware of it).