Well you see son puts on glasses and puts adopts air of intellectual authority
… that's a derby hat, let's you know this is the working class/mechanic variant of steampunk waifu. If she had a top hat, monocle and ballroom gown ( full of hidden weapons and mechanisms), she'd be an example of the noble class variant steampunk waifu.

Perfect in all fields EXCEPT:
>le obligatory top hat with goggles to let you know this is steampunk