This may seem like nothing, but I still wonder about this.
Based on GIRM (below), Is appropriate for a priest to walk in the aisles between the pews for the homily (entire homily). When visiting relatives, the priest there always does this. Some say they like it. Some say they find it distracting.
“136. The priest, standing at the chair or at the ambo itself or, when appropriate, in another suitable place, gives the homily. When the homily is completed, a period of silence may be observed.”