"Selma was volunteering," a spokesperson for the shelter tells PEOPLE Pets.
During this volunteer session, Blair walked two different dogs: Carol, a Lhasa Apso, and Papa, a one-eyed dog much like Blair's dearly-departed Wink, who died earlier this year.
"Selma is a wonderful person," says Lange Foundation's spokesperson. "She is warm and friendly to all the staff and volunteers. The animals love her. You can see how happy Carol is on her walks with Selma."
Blair has been a supporter of Lange Foundation ever since she adopted Wink there years ago. Both Carol and Papa are available for adoption from Lange Foundation.