Peanuts: Pop Culture Reference????

[Tranzor]

Here is a question that I was always wondering about. In the film "A Boy Named Charlie Brown (1969)" after Charlie Brown wins his school spelling bee and a song/celebration takes place, we see a few of the peanuts characters kind of "bow their head and have it sway from side to side", as if giving praise saying "you are the man". When watching this it does not look like it was something done just for the film, but more of what some kids might have been doing during the actual time this was released. Can anyone shed more light on this? I did try a few searches but found nothing. Thanks again


PS. Just found out that the dvd version from Paramount has extra and extended scenes that were not on the vhs prints.