When I went to Manila, I noticed the eyes of local young people looked scary.
The expression in the eyes of the young people I saw in Manila was spooky.
ーWhen I went to Manila, I noticed the eyes of local young people looked scary.
「マニラに行った時、現地の若者の目が怖いことに気がついた」
local young people で「現地の若者」
the eyes of ... looked scary で「…の目が怖く見えた」
ーThe expression in the eyes of the young people I saw in Manila was spooky.
「マニラで見た若者の目つきが怖かった」
the expression in the eyes で「目つき」
spooky で「君の悪い・怖い」
ご参考まで!