Raise the quality of conversation.
Burning or charring your cigar will ensure your entire smoke has that extra little bit of charcoal taste to it as your first draws will carry charred ash down the length of the cigar with them.
Lighting your cigar in one spot more than another will all but guarantee your cigar will burn unevenly to the end (no matter how many times you try to correct it).
A personal favorite, using sulfur-based matches so you taste the wonderful hint of hard-boiled eggs while you smoke. Who doesn’t love a hearty breakfast with their cigar?