Stand up straight! Look brave!
(Stand up straight! Do not show fear!)
(In fact, the version with tìtstewnga' is grammatically correct. However, in the context in which Varang speaks it, the original version is justified, even if it bends the rules. She wants to say something sharp and punchy, with good rhythm. 'Ur fkivan tstew! is much stronger than 'Ur fkivan tìtstewnga'. And it's perfectly understandable.)
Lukan, the little brother, and Palu, the little sister, are still babies, and I'm happy to say they're very beautiful and cute. But unfortunately they're also shy, almost like a touched helicoradian. They arrived at our house last night, and needless to say the new place and likewise the two new men are very strange to them. For most of the time today they were hiding. We hope they'll soon become brave enough to come out and play with us. Feeling calm and happy in a new environment takes time, so we have to be patient.