Namely, social media allow people to check in at a given location, which means you can ask followers to announce their presence at the point of sale.
Vhathu vhapo vhane vha rengisa vha ya vha vha na ndila ya vho ya u rengisa zwithu nga ndila yo teaho, zwine zwa amba uri zwi vha zwavhudi u tshi nga vhudzisa vhadivhi vha hune na dzula hone uri vha kone u ni vhudza nga zwithu zwine zwa nga shuma kha vhupo ha hanu.