Ask if you can watch him get tacked up and you should ask to watch him get tacked up
Asking about the medical history, arrive slightly early, ride him/her and try to pull out any bad behaviors, ask for a second appointment if necessary, and make sure you love the horse you are buying! Don’t slip one toe into the water! Gotta be fully confident that this is the horse you are interested in!
Make sure you try everything you are planning on doing with him/ her while at the place you are trying it at