Clint's just finished searching for his keys (in his front left pocket, where they were supposed to be but he didn't remember putting them) when his phone rings. He smiles slightly at the 'H' on his screen, but he doesn't know if Natasha's back from her mission or just wants to let him know she's not dead. Or went AWOL again, and decided to give him heads-up this time.

"Barton," he answers after hooking the Bluetooth over his ear. The door to his apartment unlocks remarkably easily, now that he actually has keys.