What would be the most important service skill that you would need to have in your day to day business?

Listening skill is what I believe the most important skill we need in a customer service sector everyday, since we are there to assist them with their queries and request and we will not be able to meet their needs unless we listen to them carefully and understand what their actual needs are.

Listening to the customers and proactively helping them to solve the problems 

We all give our best to satisfy our customers but not all are happy. The most important service skill a person can have is empathy. 

Interpersonal relationship (people) skills!

listen to your customers and be patient, is the key to success in service industry  

Attitude towards work. Because, it decides if you give your best in any given job or just be average. It decides if you want to leave your problems behind and wear a smile or let your problems affect your work.