Do you have lingering thoughts in your heads whenever you bid farewell to someone? A loved one, a family member, a dear friend, a recently made acquaintance, and a stranger whom you barely know? At least I know I do have them. There are some farewells when we would go our separate ways, and there would be thoughts like, "Should I turn back?" and "Will the person turn back, too? To share that one last goodbye for the day?". There are some farewells where I would board the bus first, or leave the train first and I would wonder, "Should I search for that person amidst the crowd?" and "Will the person scan her or his eyes to meet mine, too?". There are some farewells when I would enter the lift and I would wonder, "Will the person stay, to have our eyes interlocked and to be smiling at each other, till I go out of the person's sight?" And there are instances when I would doubt, "Oh, the person probably wouldn't turn back, or ...