[quote=@floodtalon]
Charisma in general is a pretty simple skill, it just means people like you more. For Gawain specifically, knights and lower ranked soldiers like him more. Gawain is approved by the way. 
[/quote]

Rank E charisma is described as increasing leadership skills but lowering troop morale, generally. Gawain's seemed to be different so I wasn't sure if that applied to him or if it just meant he was generally well liked.