Fill a magazine. Insert it into the pistol. Rack the slide. Remove the magazine and reholster the weapon.
Insert one more cartridge into the magazine.
Draw the gun, put the magazine back into it.
If there's a safety, engage it. Now reholster.
The only effective safety device is the grey, gelatinous mass between your ears. If that safety device isn't working full-time, neither an empty chamber nor a safety lever will save you from someday making a horrible mistake.
If you intend to carry your pistol as a defensive weapon, teach yourself to be alert-but-comfortable with a fully-loaded weapon ("condition 1"). Otherwise, you will be carrying nothing more than a small, lightweight club.
There is no time, in a save-your-life situation, to draw and then rack a round into the pistol's chamber. I don't care what you've heard or read about the so-called Israeli method: it doesn't work. No ifs, buts, or maybes. It doesn't work.