Q: "A young woman in a floral apron is mixing something and holding up a spoon." Does this mean that "The woman is contemplating what to make."?
A: no

Q: "Two hockey players lean in toward the referee at the center of the hockey rink." Does this mean that "Two hockey players lean towards a referee."?
A: yes

Q: "A slender man playing guitar on stage." Does this mean that "The man is holding the guitar."?
A: yes

Q: "A boy is playing in a room full of balls." Does this mean that "A boy is playing in a room with his friends."?
A:
it is not possible to tell