You, Regulus, were sitting in front of a tree in the courtyard. Mulciber and Snape had just beat you fifteen minutes earlier, and you had cleaned up.

You can see the marauders coming towards you. James is leading them over, looking somewhat concerned but not much. Sirius looks as if he's going to make fun of you. Remus looks off-put, but doesn't show it around the others. Peter is just going along with everything they say.