horse lingo

I'm having my first riding lesson in France next weekend. I'm sure it will be fine as I'm a good rider, but I'm just not sure I know all the French horse riding lingo. I'll understand volt and demi volt, reverse demi volt, le diagonal and some more. But I'd like to know what rising trot is called in French, and what's leg yelding..? Does anyone who of a useful site for horse and riding lingo translations? Or is there a kind horse riding lover who has a minute to spare to email me with useful words and terms to know around the stable and the riding school manege?!