If someone goes above and beyond I just give extra attention.
I will answer their emails in a relatively timely fashion, and even read them all the way through before responding.
I will respond to their kik messages within 48 hours, sometimes even within the hour they message.
I have never made extra work for myself, because when someone is tipping for shows theyre getting a show out of it. BUT I understand feeling the need to do more when someone i awesome. So I just gave extra attention. Saying hello when they came to my room, remembering the things we talked about. Giving them priority in show requests. I never wanted to create or cater to a member who expected me to center my life around them, or a member who expected double (sure you tipped a countdown for a show ... but you saw a live show, and now you want me to make a custom video too? NOPE).
Some members don't expect anything, I have asked a couple of former regs what I could do to show my appreciation when I first started, and literally they wanted nothing extra because they respected me and were tipping towards a service at the time. They basically trained me to realise the good guys know that I am already working and I don't owe anything beyond what they tip for. I think if I had just said "here have this free thing" it probably wouldn't have been as nice if say one of them asked for a photo for their desktop or something ... but none of them expected anything. SO I just made peace with myself and made sure to try and make them feel special in their time they spent with me.