The toothbrush looking tool is used to do edges. It’s specifically for edges, so Jaliyah would have to use that!
Olivia on the other hand would have to use the black tool to curl her eyelashes! She would have to first curl them, then apply mascara after, wait for them to dry.. then curl them once more!
I don't understand the question but , the first thing that comes to mind is an edge brush and an eyelash curler for curling and to apply the mascara( Step 1: Curl Your Lashes. Now comes the mascara part. ...Get The Product On The Wand. Coat Your Lashes! ...Do the same for the lower lashes. ...Brush Out The Clumps. ...Second Coat. ...Curl Again If Required.