Meet personally

Face-to-face meetings are incredibly powerful for building personal relationships. Since in-person meetings can be candid in nature and don't always get restricted to a certain time frame, you get the opportunity to carry out in-depth discussions. This leads to a holistic view and gives additional context around customer's needs.

Certainly, this is not a scalable way to strengthen relationships as your customer base grows, but this can be used for key customers who are evangelizing your company.