Which two sets of lines in this excerpt from T.S. Eliot's "The Love Song of J. Alfred Prufrock" suggest that the speaker is concerned about how he relates to others?

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And indeed there will be time
To prepare a face to meet the faces that you meet,
There will be time to murder and create,
And time for all the works and days of hands
That lift and drop a question on your plate;
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And indeed there will be time
To wonder, "Do I dare?" and, "Do I dare?"
Time to turn back and descend the stair,
With a bald spot in the middle of my hair—
(They will say: "How his hair is growing thin!")
My morning coat, my collar mounting firmly to the chin,
My necktie rich and modest, but asserted by a simple pin—
(They will say: "But how his arms and legs are thin!")
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