Among other things, a first video is captured of at least the eyes of a first person who is looking along a video capture axis. A second video of at least the eyes of a second person is presented, along a display axis. The video capture axis and the display axis are aligned along a common axis so that the first person can view the second video of at least the eyes of the second person along the common axis when the first video of the eyes of the first person is being captured along the common axis. Instructions are executed to maintain an eye contact video interaction session between the first person and the second person using the captured video and the presented video.