Ugh, first date! Stop, Sensei's down to zero health! Sensei-chan accidentally (seriously, accidentally) asks Umio out on a date, and she has no idea what to wear.
Expose my shoulders and neckline.
Zeige meine Schultern und 
meinen Ausschnitt.
Mostraré mi escote y hombros.
Iré enseñando escote y hombros.
me tenir droite
Deixar meus ombros e pescoço à mostra.