Sending a letter immediately after the trade show runs the risk of your letter being lost in the shuffle among the likely many other letters that attendees are being sent. Waiting for 2 weeks or more creates the possibility that the buzz from the trade show …Follow Up To Trade Show Attendee Letter. Thank you for stopping by our stall at [name of trade show or conference] on [date of the show]. I wanted to take a feedback whether all of your questions about our [product/service] were answered at the stall by our executives. We at XYZ Company [strong point as a company] which you may have seen ...>>For more details about trade show email best practices,