The offer should explain why someone would want the emails before asking for their address. House of Hackney connects its invitation to samples, a practical part of choosing furnishing materials. KARHU asks whether subscribers prefer lifestyle products, running or both. That question has a recognizable purpose; the emails should honor the answer.
Compare those requests with Olli Ella’s single email field and Proud Mary Coffee’s longer form. Add a field only when its answer is needed for the offer or changes the communication. Keep any conditions close to the invitation, and check that the mobile keyboard does not hide them or the submit control.
Appointed provides both a close icon and a written No Thanks action. Intelligentsia and Exploding Kittens leave a small control for reopening the offer after dismissal. These are separate decisions: declining should close the interruption, while a return control should let an interested visitor reopen it at their own pace.
Check the space that return control occupies. OMY’s recorded mobile badge overlaps the beginning of page content, showing why a small desktop decoration can become a mobile obstruction. Review the open form, the dismissed state and the keyboard together. The captures do not establish repeat-display timing, so test that separately rather than inferring it from the screenshot.