Keep your body behind his drive line (at his girth). Keep your shoulders BACK, stand up TALL, and look at his rear end. Flick the lunge whip at his hiney and keep him moving (trot would be best). Praise him when he's moving out away from you well.
I am a single Mum,. Bugger all money. Make a lounge whip with a long stick, and tie a lightweit but strong small rope on it.
Otherwise lunge him as normal, have even his lead rope in other hand, and throw at him (keeping hold of the end to back to you) and tell him to walk/trot on.
I have only once needed a lunge whip, and it was for an ex racehorse, (never had to touch him, just whip it behind him) but I made my own (as before). Otherwise I have never needed a whip.
If he is still confused at what you want, have someone help you by standing by his head and walking and trotting him around you. This will help him get the idea that he is supposed to "stay out" on the outside.
Try to get & use a lunge whip, and drive from behind the shoulder, as stated above, but also use your body language.... look him in the eye, wave your arms, kick a little sand in his direction if you need to. Anything to tell him to get back. If nothing else works (I've had a few stubborn, lazy buggers in the past) I used to put a few pebbles in an empty plastic soda bottlej - and shake it, baby...
Well that sounds good, just remember when he is coming in toward you he's getting away with it by ending the session himself. Just keep up whatever you seem to be doing because it sounds like its working
I am not a huge fan of lunge ropes, but if you don't have an arena then they work fine. First make sure it is long enough. If it is too short horses don't like to lunge on it. Since you don't have a lunge whip, first try to push her away and slap your thiegh using a clicking noise to get her going, if she comes into you move away but keep her moving in a circle. If that doesn't work then find a long stick or something that is flexible yet long. Get her moving and when she tries to move into you tap her on the front of the shoulder and move away. Use a little more pressure each time if she still doesn't get the hint. Once she does stop tapping her and just use it to guide her.