${?}_{{?}_{{?}_{?}}{?}_{{?}_{?}}{?}_{{?}_{?}}{?}_{{?}_{?}}{?}_{i}tis\text{a}\text{g}\text{l}\text{o}\text{b}\text{a}\text{l}\text{i}\text{n}\text{d}\text{i}\text{c}\text{a}\text{t}\text{i}\text{o}\text{n}of\text{f}\text{r}\text{i}\text{e}\text{n}\text{d}\text{s}\text{h}\text{i}\text{p}or\text{c}\text{o}\text{u}\text{r}\text{t}\text{e}\text{s}\text{y}\text{.}}$

${?}_{{?}_{?}}{?}_{{?}_{?}}{?}_{{?}_{?}}{?}_{{?}_{?}}{?}_{{?}_{?}}itis$ a global indication $of$ friendship $or$ courtesy.

Eye contact

Speaking

Frowning

Shaking hands