[hmmmmm]

It isn't a guarantee that you will find functions with strings when you go to the first xref (or any). Try going to the next one if the current one doesn't have any strings. Also if you're on the Pro version of IDA then press Tab to go into pseudocode view, it'll make navigating a lot easier.

Also remember what I mentioned about there not being "a way" to do this, try to get creative and find something you can use to identify the function. Even if it takes you an hour the first time, it'll be 5 minutes the next time. In the end it all comes down to experience.