...........You are NOT supposed to pull Jade's, little missy
Rosie - Hmmmmm, oh em gee. It all depends on WHAT she thinks of him, I think. I mean, you know Rosie. She likes some people with his attitude, and doesn't like others with it. She's hit and miss. He'll like her, though, and think that her smarts are impressive and yeah. *nods*
Liam - Awww, Liam. I'm sure he'll LOVE Liam, if only they know each other, which isn't really a stretch, because Forrest would make himself known to everyone, probably. They maybe met Liam's first year and Forrest helped him find something or whatnot.
Rich - Again, it depends on what Rich thinks of him. They actually aren't that different, really, seeing as they are both generally happy. Though Forrest is le poor, and Rich is..we...le rich. So, yeah. They could be friendlies, though, just depends.