さっきからあの人一人でにやにやして。怪しい。

misfortune; adverse fortune; hapless fate; unfortunate (e.g. life); checkered; varied

from (e.g. time, place, numerical quantity); since; from (originator); by; because; since; out of (constituent, part); through (e.g. window, vestibule); after; since

that (someone or something distant from both speaker and listener, or situation unfamiliar to both speaker and listener)

man; person; human being; mankind; people; human (Homo sapiens); humans as a species; character; personality; man of talent; true man; another person; other people; others; adult

one; best; first; foremost; beginning; start; bottom string (on a shamisen, etc.)

-ian (e.g. Italian); -ite (e.g. Tokyoite); indicates nationality, race, origin, etc.; -er (e.g. performer, etc.); person working with ...; indicates expertise (in a certain field); (usu. in compound words) man; person; people

indicates location of action; at; in; indicates time of action; indicates means of action; cause of effect; by; and then; so; indicates continuing action; indicates certainty, emphasis, etc.

grinning; broad grin; smirk

to do; to cause to become; to make (into); to turn (into); to serve as; to act as; to work as; to wear (clothes, a facial expression, etc.); to judge as being; to view as being; to think of as; to treat as; to use as; to decide on; to choose; to be sensed (of a smell, noise, etc.); to be (in a state, condition, etc.); to be worth; to cost; to pass (of time); to elapse; verbalizing suffix (applies to nouns noted in this dictionary with the part of speech "vs"); creates a humble verb (after a noun prefixed with "o" or "go"); to be just about to; to be just starting to; to try to; to attempt to

suspicious; dubious; doubtful; dodgy; suspicious (referring to a potential amorous relation); dangerous (e.g. financial situation); ominous (e.g. weather); strange; shady; fishy; charming; bewitching; mysterious