George Washington's copies list of etiquette continues...
11. Shift not yourself in the sight of others, nor gnaw your nails.
12. Shake not the head, feet, or legs; roll not the eyes; lift not one eyebrow higher than the other; wry not the mouth; and bedew no man’s face with your spittle by approaching too near him when you speak.
13. Kill no vermin, as fleas, lice, ticks, etc., in the sight of others; if you see any filth or thick spittle, put your foot dexterously upon it; if it be upon the clothes of your companions, put it off privately; and if it be upon your own clothes, return thanks to him who puts it off.
14. Turn not your back to others, especially in speaking; jog not the table or desk on which another reads or writes; lean not upon anyone.
15. Keep your nails clean and short, also your hands and teeth clean, yet without showing any great concern for them. English readers through Francis Hawkins’s 1640 translation, Youths Behaviour, or Decency in Conversation Amongst Men.