I think sometimes, it depends on the situation tho!! to not go up to the jump before but to "kick" them over. But letting them look at the jump for too long or so they will try to find ways to get out of it, but be safe and don't jump something too crazy without them looking tho
If your horse keeps running out to a certain side put the crop on that side and make sure that you want the horse to jump it also. Turn the horse the opposite way of where they ran it out. Get the horse to know you want him to go to the jump before you get there.