They can trot actually, although it's not their natural gait. They actually "shuffle" or move from a side to side motion rather then a forward trot. Depending on the type of gait they have, some will pace, which is where the two legs on the same side move so right side, then left. Others will move with the left front right back and then opposite. It's a very smooth "glide ride". There is no bounce to it, kind of like riding a cadilac. Some gaited horses will also "rack". It's all very comfortable though. If you ever get the chance, you ought to try one.
"Be a best friend, tell the truth, and overuse I love you
Go to work, do your best, don't outsmart your common sense
Never let your prayin knees get lazy
And love like crazy"