So like what if it was Natasha's Birthday and to do something special for her Bruce tried to ask her out in Russian, so when he did this is what he said "Наташа Романофф вы хотели бы выйти на игру с мячом со мной, я слышу, что есть хорошая еда и хорошее обслуживание?"
And Natasha tries to stifle a laugh because she knows what Bruce meant to say but instead Bruce said 'Natasha Romanoff, would you like to go out to ball game with me I hear it has good food and good service- He meant to ask if Nat would go to dinner with him at La Terrazza a restaurant with awesome food and its Italian based.
Natasha does say yes though, but on their 'date' She tells Bruce what he really said in Russian.