Direct and indirect free kicks are awarded to the opposing team of a player, substitute, substituted or sent-off player, or team official guilty of an offence. INDIRECT FREE KICK SIGNAL The referee ...

The referee should point with a raised arm in the direction that the free-kick has been given. The referee does need to make a further signal to indicate it is direct. Players often wait before taking ...

You already had an idea, but it is backed up by data from Opta detailing all players since March 1, 2015 (the start of Giovinco's MLS career) with more than four direct free-kick goals.