It means to tell the secret or joke to someone else
Let Somebody Know was created in 1995.
Tell her a joke!
Saying they let the FedEx guy add a joke to the show in the opening crawl is a joke in itself. They didn't actually do that.
Leave someone alone means stop pestering somebody. Let someone alone means let somebody be by himself or herself. The two phrases originally meant the same thing, so you will sometimes find either of them meaning to allow someone to be by himself or herself, but that is increasingly unlikely with "Leave me alone." "Let me alone" can also be used with the stop bothering me meaning.
It is what you show somebody to let them remember what to say.
Okay let's hear it... this better be good...
Dont let somebody steel it.
If he (or she) is an "ex," haven't you already split up? Somebody's been "let down" by now.
It means to let go
to tell a secret
just be yourself around him. joke around with him. let him know that your not shy around him.
It means to let go