Currently sat at the hairdressers (never been here before) my appointment was 15 mins ago and I'm still waiting. Wondering how much longer I should wait before I ask how much longer the wait will be? Don't want to come across as rude or impatient... haven't been acknowledged other than to 'take a seat' in the waiting room. A lady has talked in after me and they offered her a drink straight away! Thoughts please, what would you guys do?