Homemade good food
So, while not an expert cook, I believe that being able at least make something in the kitchen is a must skill. A more personalized meal (or even snack) can be impressive to others if you can pull it off. I made cheesy garlic bread. It was good.
And as usual: If you are a foreigner looking to meet Japanese women or Japanese singles, please check out EXEO International. We offer many speed dating events in Japan.