I have a lot of people, so I'll just narrow it down to those who might come in contact with Irene. For students, Eli/Vali (orignlavenger) would be taking some of her classes. Bethany/Hel (colddarkhel) might take one or two. For my adults, I have Nicholas/Agravaine (thearrogant), who's 32, a grad student in History, and doesn't talk to many people. I also have Ai/Uzume (tubdancer), who is from Japan, so she speaks fluent Japanese. She's 31 and a Nurse Practitioner at the Wellness Center. She's outspoken and likes to have fun. She'll hang out with Irene. Also, Laura/Demeter (wheat_bread) will be nice to Selene and hang out with her. She's 29, softer than Uzume, more of a homebody, but will hand out lots of fruits and vegetables from her garden.
(The rest of my characters are Emma/Syrinx (pridefulpipes), Ben/Eros (lovendesire), Paxton/Phobetor (phobophobia), Seungwon/Mug Ruith (slaveofthewheel), Holden/Raphael (sicklyhealer), Juliette/Nut (this one). They'll comment here and there. I'm sure of it...especially Paxton.)