Just yesterday, the two braved the pouring L.A. rain to do some Christmas shopping and have a lunch date.
So just how serious is the new-ish couple getting?
The sparks were flying between the duo at Quality Food on 3rd St., according to an eyewitness.
"They were incognito," a source tells me, "He was in a baseball cap and she had on a big jacket. They seemed to want to keep a super low profile but looked comfortable around each other."
Amanda and Ryan were "laughing and flirty," as she sipped on hot tea. After eating, the two left out the back entrance to avoid the paps outside.
"They've been hanging out a lot," another source close to Ryan tells E!, "They both are surprised they haven't been caught by the paparazzi."
They may have managed to avoid getting papped together (for now), but we're so on to you two! They must be getting serious if they're out doing coupley daytime stuff, like shopping and lunching sans cocktails.
"I'm not sure if they are exclusive, but I know he likes her a lot," the source says.
Just last week, they didn't bother trying to hide their affection during a dinner date at Soho House.
"They were laughing and kissing the entire time," an onlooker says.
Who says a party hookup can't turn into a relationship?