Simplify the following text for a Grade 6 native English-speaking person.
Original: She sings , but then notices blood on his hand and elbow ; everyone begins shouting at him , and Wozzeck , now agitated and obsessed with his blood , rushes out of the tavern .
Simplified: She sings , but then notices blood on his hand and elbow ; everyone begins to shout at him , and Wozzeck rushes out .