A pitchers head position and movement will often tell you what he is going to do before he does it. There is nothing as specific like there is with the heels to look for. What you want to look for is patterns or a movement that gives away his intentions. It may be the 3rd or 4th inning before you discover something, but if you do you can use it to your advantage. An example would be a pitcher that always glances towards a certain location when he is going to make a move to first but focuses on a different location when he is going to the plate.
Some pitchers fall into a rhythm when pitching, especially if they are throwing the ball well.
They want to get the ball from the catcher, get on the mound, take their stretch and throw the ball. You can often time them when you are on the bench or in the batters box. If you think you have a pitcher timed and you want to use this method to get a good jump, you may not want to take your maximum lead. You want to take an average lead to give him the impression that you are not a threat to steal. The most common focal point to watch on a right-handed pitcher is his heels.