Hairdressers

I was having my hair cut and styled yesterday, a friend of the stylist came in , got herself a coffee then started to stand by my chair chatting and laughing quite loud with my stylist who was also chatting back , she wasn’t having her hair done. Just come for a chat
It was really annoying me as I hoped the stylist was concentrating on doing my hair , neither acknowledged me or invited me in to conversation, it went on for 20 mins before she left. I wanted to say something but didn’t, What would you have done ??