Wash and dry your beard
Comb your beard in the direction of growth
Decide your desired beard length
Use a beard trimmer with the right guard length
Trim evenly across the beard
Trim downward from the cheeks to the neck
Define the cheek line
Define the neckline
Trim the mustache so it does not cover the lips
Check both sides for symmetry
Use scissors for stray or longer hairs
Clean up the edges
Apply beard oil or balm after trimming