What can I mix in with Tequila that isn't too bad?

I bought some Tequila and I want to mix it with something.

However I hate soda or anything really carbonated (but I'll drink carbonated over retail soda if necessary)

I was thinking about mixing it with some fruit juice or lime juice but what are some good fruit juices or recipes for Tequila that don't involve too many artificial flavors or carbonated substances?

Thanks

bon appetit