In Japan, public displays of affection such as kissing are generally considered inappropriate and not socially acceptable. According to an expert on Japanese culture and etiquette, public kissing is not accepted in Japan and is considered rude and inappropriate by most people. There are certain rules and etiquette regarding PDA that must be followed when in Japan, such as avoiding overt displays of physical contact and always being discreet. Opinions on public kissing vary among different age groups and social circles within Japan itself. Couples visiting Japan should keep all physical contact discreet so as not to offend anyone around them who may find such behavior inappropriate.