On someone‘s tippytoes

= On someone‘s toes

= On someone‘s tiptoes

= Tiptoe

踮脚尖

(1) And now to the sink on your own tippytoes. –– Night-Night, Little Pookie

现在走到水池边，踮起你的脚尖。——《晚安，猪猪宝贝》

(2) Miss Bird teaches a dance. She spins. She leaps. She walks on her toes! – I Can Read, Mia

鸟女士教一支舞。她旋转，跳跃，踮着脚尖行走！——《I Can Read之小猫米娅》

(3) I have to stand on my tiptoes to reach the cookie jar on the top shelf.

我必须踮起脚尖，才能够到放在架子上的饼干罐。

(4) He tiptoed around the sleeping dog, so he wouldn‘t wake it up.

他悄悄绕过睡觉的狗狗，以免把它吵醒。

动词tiptoe还有悄悄、蹑手蹑脚的意思。