'mes amis' are called 'my friends' in English.
"With my friends."
This translates literally as 'The friends of my friends are my friends'. In good English 'My friends' friends are my friends also'.
mes amis - my friends
"Mes amis" contains a pronoun already: "mes" is a possessive pronoun, meaning "my".
Bonne fête mes amis would be roughly ''Enjoy the party my friends'' or ''Happy holidays my friends'', depending on the context.
a heart for my friends
"à tous mes amis" = "to all my friends"
Mes amis - 1999 is rated/received certificates of: France:U
Voir mes amis means 'to see my friends' in French.
C'est pour tous mes amis > this is for all my friends (all boys or a mixed group) C'est pour toutes mes amies > this is for all my friends (they're all girls)
Mes amis... even one male in the group makes it masculine :)