Uttering the expiation of quitting a meeting "i honor allah from all what is ascribed to him, o allah, all praises are for you, i testify that there is no worth worshipping but allah, i repent and ask allah for his forgiveness" (narrated by sunnah scholars) 
every day includes many meetings such as:
1-  while eating daily meals you mostly speak with whom you're eating with.
2- when you meet one of your friends or neighbors even if you both were standing.
3- when sitting with your classmates or work colleagues.
4-  when sitting with your spouse and children chatting together.
5-   while driving home with your spouse or friends.
6- while attending a lecture, a seminar or a forum.
look what you do by applying these sunnahs you keep:
· Praising allah several times, which keeps you always in contact with allah.
· Repenting and asking for allah's forgiveness for whatever happens during those meetings.
· Testifying that there is no god but allah.
the benefits of applying these sunnahs on a daily basis is forgiveness of whatever happens during those meetings with others.