Younger and older mobile phone users differ in their tolerance of phubbing, that is, using one’s phone in face-to-face interactions. Yet, there is limited knowledge of how phubbing norms influence phone use in intergenerational interactions. We conducted an online survey among younger (aged ≤ 41; n = 105) and older adults (n = 104), compared their generation-specific normative perceptions, and analyzed how these perceived norms were correlated with intergenerational phubbing. The results suggest a particular norm sensitivity of younger phone users, meaning that they not only had generation-specific normative perceptions, but that they also adapted their phone use to the older generation’s phubbing norms in interactions with them