Q: "A bike rider is doing performance tricks." Does this mean that "A biker is idling at a stoplight."?
A: no

Q: "Male singer crowd surfing" Does this mean that "A singer is riding a surfboard."?
A: no

Q: "A young girl hugs a red stuffed animal, looking happy." Does this mean that "A young girl hugs a red stuffed animal"?
A: yes

Q: "A man with muscular arms shouts into a microphone at another man, who also appears to be shouting." Does this mean that "The man is angry."?
A:
it is not possible to tell