All I can say is dig in
You notice the glasses first — slightly askew, like they slipped during something worth remembering.
You feel the invitation before you process it fully, something in the tilt of the chin and the way the lips part just enough to make your pulse do something embarrassing. You want to reach across whatever distance exists between you and close it entirely.
You already know exactly what you want to do, and the title says it better than you could — you just need permission, and every inch of what you're looking at is giving it to you without hesitation.