LOL. F&W means I "fanned" you (or I am a fan of yours/your auction(s)) & I am "watching" your auction/listing(s) (I click on the "become a fan" under your user id on the upper right of the page. The seller should reciprocate by fanning the (potential) bidder back. Also the seller should tell the potential fan TY (thank you). Another abbreviation is YW (you're welcome). Welcome aboard. Good luck as a new seller!