what pressure do u keep in your trailer tires.please dont tell me to look on the trailer, it says 60 pounds,is that too high?

I keep 50 psi  in my tires. That is what the guy at the tire shop reccomended to me and I have had no problems.

My tires are rated for 90 psi  As long as your tires aren't too low when loaded down 50 psi is fine, it might extend the life of your tires.  more air for more weight