As soon as your customers land on one of the product pages in your bundles, the cross-sell offer will show as an embed widget under the Add to cart button. You always can change it to a popup which shows in the right corner by visiting:

App Settings >> Cross-sell settings >> How do you want cross-sell offer to show?

- Besides, you can change the position of the embed widget as well:

Step 1: Choose the option of Embed widget >> click on Change widget position:

Step 2: A product page displaying as editing mode will show up:

Step 3: Choose and click on the position that you like:

Step 4: Then, finish the change by clicking on the Save button and Turn off editing mode.

Done! Now enjoy your sales going up!