Name the technique used to separate the mixture of colours in black ink

Eva has many contacts on the professional networking site she uses which contacts are considered second degree

Which action is good business etiquette? a. switching your cell phone off before you enter a meeting b. keeping your cell phone on low volume before you enter a meeting c. setting a pleasant ring tone on your cell phone before you enter a meeting d. setting a standard ringtone on your cell phone before you enter a meeting

Whats are the different parts of no verbal comunication, especially body language?