She had another obstacle to be involved in activities outside of school until then a community of theater run by Yusef Muldiyana allow her to watch the process of theatrical practice.

This opportunity opened the way to art after she showed her ability to adapt with the cast of a work which will be staged on theater script Ignatius.

The celebration is then to be the starting point for her single perform in various public spaces and make her become better known as Indonesia's youngest theater artist, invited to make a speech at the convention of independent candidates for president of Indonesia in the 2009 elections, even a great Indonesian author like Putu Wijaya not hesitate to make a new monologue manuscript for her perform at Indonesia's Theater Rostrum # 2 in Surakarta in October 2010.

In mid of 2009, Sigrid to be ones who inspiring the founding of Teater Anak Negeri which introduced the art of theater, culture, workgroup, personal management and leadership from an early age in the general public and provide direct motivation in children that age.

In the activity of Teater Anak Negeri, Sigrid were also involved as activists, and to be the inspiration for the children to understand about personal management, workgroup, leadership and raise awareness about preserving the environment for sustainable living.