We are a small eCommerce shop with a small marketing budget and want to use our re-targeting budget efficiently i.e. we only want to retarget those who have demonstrated buyer intent. What are some simple signals or heuristics to use for this. A few that come to mind are:
- Visitor session length or high number of page views
- Using the search box to look for specific product
- Adding something to a cart
What are others? How do you do it for your eCommerce store?