I'll be out there between Sheffield and Sanderson in one week, chasing mulies. 'Saw a few early this week. I love the way a mule deer buck initially looks at you - whitetails always have this "oh, crap!" appearance, but mulies look like "Should I really be concerned about this?" Not the brightest, but I still like going after them.
Spotting them is the hard part. A stalk, with just a minimum amount of skill, will usually put you in firing range. I plan on getting high up, in areas that aren't travelled very much by us when headed to blinds and feeders, and glassing a ton. See something - go after it.
...and have dominion over the fish of the sea, and over the fowl of the air, and over every living thing that moveth upon the earth. Gen. 1:28