True, but manifest intent to form a binding contract on the part of both parties is.

> If you’re holding a yard sale, and I point at some knickknack and ask “how much for that?”, and you say “it’s a dollar” and I say “that’s a deal”, that’s a contract.

Probably not; contract law would probably view that as a negotiation where only you manifested an intent to form a binding contract, so unless there was some positive acknowledgement of your “that’s a deal”, no contract would be formed.

I mean, I’m pretty sure that a near identical scenario to that was the one the of textbook demonstrations of the absence of that contract element in my Contracts class.