That's okay, there's all sorts of people from all sorts of places and times here, there's usually going to be someone who can help!

[Or someone else who is just as clueless. So Usagi rarely seems too worried about such things. Either not knowing or in being able to help out if someone does look bewildered by something she does know.]

Oh, all the time! I love sundaes!

[Yup, of course she just. Assumes he means the ice cream and all.]