Credit: PPNY/GSNY/Splash News

She may not be able to talk just yet, but little Cleo knows how to make dad David Schwimmer giggle.

"It's just a blast," Schwimmer, 45, told reporters about life as a first-time father during John Varvatos' 9th Annual Stuart House Benefit in L.A. Sunday. "Every day she just makes me laugh my butt off. It's thrilling to see the changes."

Actor-director Schwimmer and part-time photographer wife Zoe Buckman welcomed Cleo on May 8, 2011. They tied the knot in a small, private ceremony in June 2010.

Schwimmer has often joked about fatherhood on Twitter, writing: "Been buried in diapers, but having a blast... by the way, don't piss my little girl off -- she's got great aim and projectile poo."

Schwimmer and Buckman reportedly met in 2007, when he was directing the romantic comedy Run, Fat Boy, Run in London. Buckman, now 26, waited on the former Friends star while working at the West End's Cuckoo Club; she later relocated to L.A. to be with her future husband.