Hi,
I think your friend may be more open to explaining things and accepting your lack of knowledge than you think. you may want to tell her you are glad she is so happy with this new life but can she explain the terminology when using it? I think she would be glad to know that you care to understand.
Is your friend single? in orthodoxy there are a lot of set-up dates (shidduchs) and it is considered a mitzvah to set up couples. Aside- there is an interesting phenomenon where singles move to New York to meet a mate and move away once they are married.
Men and women don't touch one another unless they are married or one degree of separation family (not sure if this counts for kids under a certain age). even when married, there are rules about certain times of the month when a man can't touch his wife- during her period and a few days after, I think. Your friend would almost always wear clothing that covers her elbows and knees. (you can find men or women's swim time in some religious communities.) Also they would keep shabbat, no driving, phone, email, shopping or cooking from friday eve till sat eve. Keeping kosher is a big concern, your friend would not go to a restaurant unless they are strictcly kosher, but you shouldn't have to censor yourself if you think she respects you for your own choices. (what a great bacon cheeseburge I had today! as a vegetarian it wouldn't sound exciting to me but I am happy for a friend if they got a thrill out of their lunch - I just probably wouldn't build a conversation around it ;)
I hope this helps, this is some of the basic stuff I've learned over the years through Hillel and friends.
Ilana

Finding common ground, Judaism is really an earth religion very connected to the land, we plant trees, all of our feasts are tied to agricultural and seasonal events. I recently made friends with a pagan and because we both share deep mutual respect for each other we are able to share the similarities and differences of our path in the most exquisite loving manner.

So the key points are making connection where you see genuine spiritual energies and respectfully understanding when you see empty form. Regardless of the religion you'll find genuine spiritual seekers, and those that are religiously holding to the forms are absent of spiritual essence, it is the way of all things. When we look past the comfortablliy of our own path, pass all the forms and rituals of other paths, and look into other sacred human, we will always find the deeper language of connection that transcends all forms all paths.

stay in the tender moment,
Yosef Nachman Bender