I want my SMILE back ♥

I am able to smile with my non-bento head (ie Trinity) but I can't get my Scarlet to smile and I miss my avi's smile. I select the 'smile' feature in the hud, or I use all the 'moods' and none of them produce any kind of smile :(

Please make it possible to stretch the bento head lips and form a smile :)

Thank you!!