[It's the silence, well, silent intentness of the scene which has caught his attention. Most others are either exploring, attempting flight or stuffing their faces. Seeing someone working on something all alone is different and he approaches quietly to observe.
A few seconds after having approached the other man, he finally speaks up.]
A
A few seconds after having approached the other man, he finally speaks up.]
Might I ask what is it you're attempting to make?
[Perhaps he might be of some help.]