Something I noticed with Alice here, that full cheek to cheek smile (with sharp teeth even) is only ever done by Disassembly drones or solverposessed drones, eitherway they are all made or influenced, physically changed by the Absolute Solver.
Alice (besides several other unique accomplishments or features) is the only Worker Drone who ever shows this expression, twice even, here and at the climax of cutting Uzi's finger.
Make of this what you want but it's pretty hot imo