Consider taking a ghillie suit along Charlie. You never hear of it from antelope hunters, but my experience is that it works like magic.
When hunting trails and fence crossings from natural blinds don't make a move to shoot until the animal is past you. They can be quite oblivious once they get past your position.
Like almost everything else they are creatures of habit (as mentioned above). Use your binoculars a lot and pay attention to how they move through the country. You'll pick up on patterns pretty quickly.
I noticed that antelope were funneling through the space between a hay stack yard fence and a bunch of rocks. I put up a pop up blind and bingo. Fresh antelope loin.
Old saying... when an antelope comes to water he kisses the water twice and the third time he drinks.
Once an antelope is done drinking they'll most often leave the water hole without hanging around.
Stay flexible in your thinking and you'll do fine.