Best way to ask one to go steady during a Prom in your opinion?

[Neo]

See topic, por favor/please/onegai shimasu. Here is the current plan (we are in a group of 12 total, for Prom night):

 

-Possibly pictures first

-Dinner at a restaurant downtown

-Prom itself

-After-prom party either downtown or at someone's house

-Other... undecided

[Becks84]

ask while you two are sharing a romantic slow dance