When you are at a protest it is important to remember that you need to stay safe. Most protests are peaceful and putting a camera near someones face is not something they normally will be mad about. For most protests media attention is something very desirable.
Get close to the action. You are there to capture the feeling and nothing can show the feeling as much as people doing real things, in particular how they are feeling during a protest.
You can see in this photo some of the emotions that these protesters are feeling, and seeing that will help you to better showcase the feeling of the event
Next bring plenty of memory for these photos. The last thing you want is to run out of space and miss an incredible shot. For instance if these photographers had not enough memory they would not have got these great shots.
This is the kind of volatile experiences that can create incredible photos. If you are unprepared for this kind of event you can lose opportunities to record great moments.
Finally stay safe! While most protests are very peaceful, and never descend into violence there is always a possibility that it could. Take precautions, wear your press badge where it is easily seen. Make sure you are not wearing anything that could be seen as a badge, or patch so you don’t look like a protester. Keep an eye on other journalists there, and make sure you stay in their eye line as well. These all will help you to find success in these intense situations.