Chris Tiu and Roadfill Macasero enjoy TikTok with 'iBIlib' guest co-host Myrtle Sarrosa

iBilib hosts Chris Tiu and Roadfill Macasero took a break from their creative experiments as they showed off their fun side together with their guest co-host, Myrtle Sarrosa, on TikTok.

They took on the "straight face" challenge where they try to keep a straight face while doing funny poses. The cute video was uploaded by Myrtle on the trendy app. In the video, the cosplayer and actress is dressed in Call of Duty: Mobile character skin, Artery - Jammer.

@myrtlegail When you all try not to laugh. 🙈 #straightfacechallenge #ibilib @roadfill #cosplay #codmobile ♬ original sound - Myrtle Gail Sarrosa

The three seem to enjoy engaging with their fans and viewers on social media.

In another video, this time uploaded by Roadfill, he, Chris, and Myrtle danced to a remix of the viral song of artist D Billions titled "My Name Is."

iBilib airs every Sunday at 9:35 a.m. on GMA.

Episode clips of the educational show can also be watched on GMA Playground YouTube channel.

Check out the other GMA TV shows for kids that can be streamed online here: