It is considered poor etiquette to ask a seller to "hold" an item for days without payment. If you change your mind, let the seller know immediately so they can go to the NIL . How to Use Buy/Sell Groups on Facebook - Dummies.com
Research similar items first. A common starting point for used goods is 1/3 of the retail price . Essential Safety & Etiquette
Use common BSS shorthand: BNWT (Brand New With Tags), EUC (Excellent Used Condition), or GUC (Good Used Condition).
Tap "What are you selling?" at the top of the group. Best Practices:
Whenever possible, meet in well-lit, public places like a police station lobby or a busy parking lot.
The standard etiquette is to comment "Sold" or "Interested" directly on the post.