Enjoy your meal

I have noticed that in Poland people really like to wish a nice meal. When I am sitting and eating people who I know at least in some extent always say "smacnego" which means "enjoy your meal" in Polish. If they wish you a nice meal they might just walk by so it does not mean that they would sit with you or stay talking with you. If somebody would say to me "enjoy your meal" in Finland I would expect the person to sit and eat with me. Moreover it is not that common to wish a nice meal for your friends with who you eat in Finland.