The only person who can accept an offer is the person whom the offeror intended to create a power of acceptance.

• Must be in response to an offer
• Offeree must know of the offer at the time of alleged acceptance in order for acceptance to be valid.
• Offeror controls method of acceptance, and can suspend mailbox rule.
  • Mailbox rule: an acceptance is effective upon dispatch
  • Unilateral contract: offer is accepted by full performance
  • If it is unclear whether acceptance is to occur through promise or performance, both may be acceptable.
• Acceptance by Silence Exceptions:
  • If offeror has given offeree reason to understand that silence=acceptance, and offeree subjectively intends to be bound
  • If offeree accepts benefit of services IF had reasonable opportunity to reject services AND knew or should have known that the provider expected to be compensated
  • If prior course of dealing makes it reasonable that silence could be construed as acceptance
  • If offeree receives goods and keeps them (dominion)