Draw the Lewis structure of the molecule
Count the electron domains around the central atom
Count bonding pairs and lone pairs on the central atom
Apply VSEPR theory
Identify the electron-domain geometry
Determine the molecular geometry based on the number of lone pairs
Check for multiple central atoms if the molecule has more than one
Consider resonance if it affects the Lewis structure
Use the molecular geometry table to match the arrangement
Verify bond angles and shape from the electron-domain arrangement