It's also important to note the importance of having one person be the leader and mark the targets. You can only get exp for killing one enemy party at a time, so if you have people attacking whatever they see you won't get as good of an SP reward. The rule of thumb I like to follow is: if the name is red, it's safe to attack. If the name is yellow, leave it alone.
Formerly of Lakshmi, now in Asura