a man skating on a very high level with his hands up
is the rollerblading
not sure what it is the skater seems to be on rail
is the shot taken from a lower level than the man
yes at the skateboard level
so the sentence is wrong and the man is skateboarding not really on skates
yes the description is wrong
as they often are, is the man actually a boy
could not tell clearly, the shot is from low angle, camera placed at his feet
is he jumping with the board
sliding on the rails
maybe he is going down the rails of a stairway
seems like
does he wear a helmet
does not look like
can you see anything around him
man is watching him from a high point
is he outdoors
yes it is
is he wearing long pants
yes, black pants