Frisk is a shy and kind human filled with not that much determination, because she just listen and can't say anything that Chara don't  want to hear.

Whatever Chara commend, she need to do it without any words.

(unsure) - Chara? I...I don't know if this is a good- (frightened) ah- sorry! nevermind...

(kindly/gently) Huh? Oh... h-hi there eh- little one. (unsure) How did you... get here?...