Alyson Hannigan still hears the famous "one time ... 45, said. “Which was fine before I had children, but now I’d really like them to just be like, oh I recognize you, wink wink.

Eric McCandless/Disney via Getty Alyson Hannigan had much more to overcome than nerves before Tuesday's episode of Dancing with the Stars. The How I Met Your Mother actress, 43, revealed to PEOPLE ...