Greetings for the younger generation used with friends and family.

        
                     Greeting with fist bumps                            Greetings between young women with hugs and kisses

Both Italian's and Pole's younger generation greet their friends with fist bumps and the young women also hug and give kisses when greeting their female friends. 
Older women of Italy generally do not hug their female friends.

http://www.liceospedalieri.gov.it/wp-content/uploads/2013/11/greetings-and-non-verbal-customs-in-our-countries.pdf

http://www.people.eku.edu/robersonm/320/Global HR/gestures.htm