Ok, so, at the risk of sounding ignorant, who is this, Rosh Hashanah, and why, exactly, is she happy, and what's with the last four digits of her phone number?
You do not "sound ignorant." A majority of people in this country, in my opinion, have only met one or two Jewish persons that they knew were Jewish. Or, perhaps, they only heard second-hand that a certain person was Jewish.
So, it is very natural to not know anything about Rosh Hashanah, nor Yom Kippur. All you need know is that a circumcised schmeckle is healthier for women, since a circumcised schmeckle is easier to keep hygienic.