Several children sit in a public or event setting while a costumed or uniformed adult gently touches one child's head; likely next moment, the children continue interacting with the performer.
Funny Tweet Encyclopedia @snsnokyoufu

女孩子们也想被拍拍，于是朝白血球走去。大家都好可爱啊... 果然小孩子也很喜欢帅哥。帅哥真好啊（泪）