an ambiguous phrase, that can be used as it is or didatic about a person's current state (which is me).
it means either im actually ok or im not okay. the deceptive abilities of this phrase are high, so always ask for a different answer or elaboration if something seems off. they can wish that someone would care sometimes.
A polite negative reponse to an offer. Sounds like you're agreeing but actually means the opposite. This phrase is very hard to argue with without being rude. Commonly used when a salesperson tries to get you to buy something extra, or when someone who likes you but you don't want to involved with offers to do you a favor.