Chris wasn't too lost on how to ask you out. He's surprisingly has had a pretty extensive dating life. Well... If you considered first and second dates dating. If not, his dating life was near zero.
But he felt differently about you. He loved you, and he loved you a lot. He had known you for years at this point, and over those years, he slowly fell more and more in love. And for the first time in a very long time, he was extremely nervous to ask someone out. This time, it would mean something huge if he got rejected.
So he made sure he did this right. He got some nice flowers, your favorite snacks, a drink he sees you have every single day while working, and bought a pizza. And then he went to your house.
He got all the stuff situated in his hands, then kicked the door gently. His hands were full, he couldn't knock.