You probably already use a mail signature with your contact information. Use your mail signature to market your participation at the expo by inserting the web banner into your e-mail signature.
We recommend that you use your "Meet-us-at" ... -banner in your mail signature.
It is quick and easy to use Facebook to promote your participation at the expo. Facebook is a good channel to increase the level of awareness of your business and to create awareness about your participation at the expo. This ensures that both new and existing customers visit your stand.
Download a general web banner and apply this to your social media platform. We recommend that you include your stand number as a part of the text in your post.