The beauty of research like this is that you can go around pulling people’s fingers all day. Simply tell them that a longer index compared to ring finger is a sign of higher oestrogen levels in the womb. Follow this this up by explaining that higher oestrogen levels in men are associated with better right-brain or analytical development.
One word of caution though: hope that people don’t ask you why women, who have higher oestrogen levels, aren’t well represented in the hard sciences (Maths and Physics). There’s no explanation for that yet. That may undermine your aura of wisdom.