Button the shirt fully
Lay the shirt face down on a flat surface
Smooth out all wrinkles
Fold one sleeve straight inward along the side of the shirt
Fold the sleeve back toward the center if needed to keep it neat
Repeat with the other sleeve
Fold each side of the shirt inward toward the center
Fold the shirt in half lengthwise if needed to make a narrow rectangle
Fold the bottom of the shirt up toward the collar
Fold again if needed until the shirt is the desired size
Turn the folded shirt over so the front is facing up