At the surface level, the boys appear to be friendly, fun-loving and childish but gradually the author discovers that they were mature enough to keep their private griefs safe. Moreover, they never showed their suffering in any way. Behind their smiles, there was a hint of sadness that could be seen once in a while.

i hope this helps u :)
Appearances are deceptive as at first sight the boys look shabby in their appearance  as they sell wild strawberries to the narrator...but later the narrotor understands how hard working and determined they are..
1 4 1