Reed Alexander hits up the opening of Miami Children Museum’s newest exhibition MiChiMu’s Summer Games on Saturday afternoon in Miami, Fla.

The 18-year-old former iCarly actor came out to support the event and participated in a number of activities including a dance contest, hula hoop and jump rope competitions, Zumba and assorted crazy games.

“So excited for the games to begin today! Heading to the @letsmove Olympics Fun Day at The Miami Children’s Museum! #LetsMoveDay #London2012,” Reed tweeted just before the games started.

He added after the day was over, “Had the best time today! Tons of amazing kids at Miami’s @MiChiMu for our @letsmove Olympic Fun Day! Thank you guys so much! :D #LetsMoveDay.”

20+ pics inside…