Pepsi is taking over the office and inviting consumers to have some some frosty workplace fun. The brand is opening a pop-up in Soho that is a fizzy drink lovers heaven offering their signature drink and a snowball fight experience within an ‘office’ setting. Visitors at the experience will be able to take part in games and challenges including Silence that Call’, ‘Whiteboard Wipeout’ and ‘Knock the Can into Jan’.…