Keiko was visiting several latin american cities over the summer, and was made very uncomfortable by all the warm hugs and embraces she received when first meeting her host’s friends. keiko’s discomfort was likely due to differences in between her native and host cultures.

Keiko’s discomfort was likely due to differences in Display rules between her native and host cultures.

Display rules are a set of rules that states the appropriate emotion you should show for an occurence.
In this case, people in Latin American countries tend to have a display rules to be opened and friendly to newcomers, and this often make people with different cultrue became uncomfortable.