A greeting battle? A pic of INFINITE Sung-gyu & SHINee Minho is hot!!!

The gif photo of Idol group members, INFINITE's Sung-gyu and SHINee's Minho,
was taken in '2015 Dream Concert'. It has been uploaded in a Korean online community site
and drawn attention from netizens.

Seeing the photo of them saying hello for more than one time, netizens said
'what are they doing? Is it like a greeting battle? Lol',
'It's not even their first time to meet each other', 'Awkward game between close friends'.

▲Image Source: Online Community