Have you ever been to India? Yes? Or no? If yes you know that the people in India have a different gesture of agreeing than people in Western cultures have. They wobble their head to say "yes". For "no", the use a side to side motion of the head, which is quite difficult to understand for us. Whereas in the Philippines, saying "yes" is by raising the eyebrows - and guess what the gestures in Turkey is for saying "no"... raising the eyebrow, too! How confusing! This gesture here to the left means and expression of appreciation in Brazil. To be sure that you are understood correctly in other countries, Travel Itch gives you some practical lesson in international gestures.
Yes, in some countries, a kiss is just a kiss and if I would look at you pursing my lips, you would guess right that I am flirting. Therefore, in the US it's quite unusual for male friends to greet one another with kisses. Whereas French nationals don't wanna say hi to each other without lots of kisses. even male friends kiss. In Belgium, it is common to kiss when people meet, regardless of the gender and how good they know each other.