Answer: Get up and look at his lovely face.
Explanation: Shakespeare refers to his first 126 sonnets to a young man who he seemed to love deeply. In this sonnet, he is speaking to the muse that generally inspires him, asking for its presence and wondering the whereabouts of it all this time. In line 9; "Rise, resty Muse; my love’s sweet face survey," he is specifically asking the muse to get up and look at his beloved's lovely face, to see If age has gotten to him, and to wish him fame and good.