“If you have any painting questions please let me know” is the magic phrase. I think the key thing with a trade show is to actively engaging with people, actively asking them a question, actively saying hello, actively making a connection with them. It’s not about disseminating information and just giving out a million business cards. It’s really about connecting with potential customers, seeing if they have any questions that you can answer. Offering some type of a raffle or giveaway will also help. Have a raffle or giveaway or offer something useful so people interested in your services will come to you and giving you their information.