Explain the tone of the conversation that Hamlet has with both men (Rosencrantz and Guildenstern).

Hamlet is surprised and cordial at first but his tone turns pensive and accusatory when his two friends fail to give him a sincere answer about why they are visiting him.

Beggar that I am, I am even poor in thanks; but I thank you, and sure, dear friends, my thanks are too dear a halfpenny. Were you not sent for? Is it your own inclining? Is it a free visitation? Come, come, deal justly with me. Come, come. Nay, speak. Act 2 sc 2