what is the verb for "check" in Japanese? details in 'details' ;)
As in, "I am just going to check my emails"?

Also, what is "check it out"?

Question

what is the verb for "check" in Japanese? details in 'details' ;)
As in, "I am just going to check my emails"?

Also, what is "check it out"?

Answer

check = 確認する／調べる
check it out = よく見て!／注目して!／試してみて!...

Answer

Well, nowadays Japanese seem to keep taking more and more foreign words in their daily conversations; and for "check", it could also be written in "katakana" (片仮名) as チェック！For instance, 
(貴方は) このビデオを 要 チェックだ！= You have to  check out/take a look  on this video!  [Well, usually it happens on the advertisements for some videos (include the adult ones :) printed in magazines.]