2 sentences

1. 用左手的食指触摸你的鼻子。

   yòng zuǒ​shǒu de shí​zhǐ chù​mō nǐ de bí​zi.

   Touch your nose with the index finger of your left hand.

   Source: OpenSubtitles

2. 取一小束头发，大概20到30根，用拇指和食指夹住。

   qǔ yī xiǎo shù tóu​fa, dà​gài20 dào30 gēn, yòng mǔ​zhǐ hé shí​zhǐ jiā zhù.

   Take a small bunch of hair, about 20–30 hairs, and hold it between your thumb and index finger.

   Source: CCMatrix