What is bumping?

Bump means "Bring up my post" (back to the top of the feed).

There are several ways in which an item can be bumped:

1. By someone else commenting on your item (seller's comments do not bump an item)
2. By lowering your item's price by at least 25% (Up to a maximum of 4 times) 
3. Bump your items by long pressing in "My Stuff" view, tapping/clicking the word bump or the blue bump arrow next to the item.

Click here to find out more about how to bump