Objectives: Dyadic activating interventions support both people with dementia and their informal caregivers to maintain activities. For a person-cantered approach referrers need insight in how specific interventions might meet individual needs, characteristics, and preferences of a dyad. This study aimed to develop a set of indicators for three psychosocial dyadic, activating interventions. Method: This study used the ‘RAND Appropriateness Method’ directed at agreement on indicators within a panel of experts. Qualitative research had identified 31 relevant conceptual indicators. A panel of 12 experts in dementia care rated the extent to which these indicators are recognizable in their clinical practice. Indicators with median ratings in the top third segment of the nine-point-scale were considered recognizable. Results: 18/31 conceptual indicators (58%) were found recognizable in 75%–90% of the panelists’ clients. Although consensus on the recognisability of some indicators about the need or preference for physical and social activities was lacking, the respondents nevertheless recommended including these in regular assessments. Other indicators were judged too difficult to recognize in clinical practice. Conclusion: The selected indicators offer guidance to referrers on what intervention(s) to choose, and discuss the appropriateness in a shared decision-making process, thus contributing to a person-cantered approach.