Facilitating parent‐child interactions is a key component of evidence‐based early childhood home visiting programs. Several observational measures have been created to effectively capture home visiting activities from an operationalized perspective. While the field has a reasonable understanding of what home visitors can do to facilitate developmentally supportive interactions, and why, the how remains elusive for many home visitors. This qualitative study used a modified grounded theory approach to examine the facilitation of caregiver‐child interactions during home visits. Home visit video recordings previously coded using the Home Visit Rating Scale (HOVRS) A+ were selected based on facilitation quality. Sixteen home visits (8 lower‐ and 8 higher‐quality facilitation scores) were examined for differences in home visitor behaviors that support parent‐child interactions during visits. We identified contextual and specific behaviors that home visitors used to actively engage caregivers and children together in developmentally supportive interactions. Results revealed 11 home visitor behaviors that discriminated higher quality facilitation. These behaviors were categorized into four domains: environmental conditions, executing the activity, strengths‐based focus, and caregiver responses. This qualitative study highlights specific behaviors and professional development areas to support more effective home visiting services for a diverse population of families with young children.