* Hygiene: Applying lipstick can transfer germs and bacteria from your fingers to the lipstick tube and then back to your lips.
* Distraction: It can be distracting to others at the table, especially if you're taking a long time or making a mess.
* Untidy: It can make the table and surrounding area look messy, particularly if lipstick gets on the tablecloth or napkin.
What to do instead:
* Excuse yourself: If you need to reapply lipstick, excuse yourself from the table briefly and do so in a restroom or private area.
* Bring a compact mirror: This allows for discreet lipstick application even outside of a formal setting.
* Apply beforehand: If possible, apply your lipstick before sitting down for the meal.
Ultimately, the level of formality of the occasion and personal preferences play a role. However, erring on the side of caution and avoiding lipstick application at the table is generally considered polite and considerate.