1. wondering - showing curiosity; "if someone saw a man climbing a light post they might get inquisitive"; "raised a speculative eyebrow"
inquisitive, questioning, speculative
curious - eager to investigate and learn or learn more (sometimes about others' concerns); "a curious child is a teacher's delight"; "a trap door that made me curious"; "curious investigators"; "traffic was slowed by curious rubberneckers"; "curious about the neighbor's doings
Sometimes it's productive