He's about 4 years old, textbook quarter horse (though a little thin, skinny neck). He had a couple of minor knee injuries, and was broke to ride on a ranch in Oklahoma. He tacks up fine, and will let you put weight on him with no problems.
But... I have no idea where to start with this guy. He's a sweetheart, follows people around like a puppy, but I don't know what he knows or doesn't know.
Any ideas where I should start with training this guy? I'm probably going to just start at the basics.