Sarcastic, watashi-sama? Surely not!
Actually, I'll tell you a story. When I first started working in former Soviet countries I met a lot if people who not only couldn't speak English, but couldn't read the Roman alphabet either. You'd think "Ben" was a simple enough name but if you know Cyrillic, its possible to misread it as being approximately "Venya" or even "Vanya". Since Vanya is quite a common nickname in Russian speaking countries I just decided that if someone thinks that's my name, I go with that. It doesn't matter, we both know what is meant. It isn't so common now but I still encounter it occasionally.
It's quite easy to read Russian names if yiu know the alphabet, because there's usually only one pronunciation for any given spelling and the spelling is pretty much phonetic. English, not so much.
Japanese, Korean or Chinese names, different game. I don't have the first inkling of how to read any of the scripts and can't functionally distinguish between any of the spoken or written languages. However its easy to give offence by mistaking names and honourifics, so I rely entirely on interpreters and make no attempt to speak any Japanese etc. Pretty much all expats do the same, because it works. Most Japanese who do speak English will ensure that you have some recognisable version of their name that yiu can consistently use without giving offence, because they have so introduced themselves.
So yes, I do live and work in an environment in which variations of words which are approximately similar are taken as functionally synonymous. So it goes, it's just a convention like a lot if other conventions.
So, Sam behaves pretty much as kids that age do, rushing around after the enthusiasms of the moment.
By the by, I notice from another link that Momo has her USB port in her right ear, not the back of her neck. She seems to have a pretty full suite of stereotypes ... she lampshades the "sweat-drop" convention with a throw-away gag about "how difficult it is to clean afterwards", shows herself a kendo or maybe butsu expert against the squirrel and produces high-pressure steam when reading the Victorian content in the library.
So, AnthroPCs can do whatever is required for the purpose of the exercise..