The scale involves asking questions such as if they feel useful, loved and been interested by new things.
"It has given me a lot of confidence in myself and makes me feel useful and worthwhile, " he told CNN.
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Beyond his paid work, Easton constantly plugged in and gave back in ways that were fun and made him feel useful.
It also has a 3D view which to some users may feel more useful than Streetview.
Tight stealth mechanics and excellent melee combat, combined with an array of magical powers, make Corvo a formidable assassin, though some of the powers feel more useful than others which some balancing could help even out.
In fact, the happiest Virgos are the ones who feel appreciated and useful.
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The first time I signed into my Flipboard account on the iPhone made my phone feel a lot more useful.
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"When I'm out doing these trips I feel I'm doing something useful, " says software engineer Thomas Davis , 52, a cofounder of Silicon Graphics, who retired two years ago.
According to Ed Waugh, who designed the electronics for the water sampling device, the trials are "a useful way of getting a feel for the task".
It's equally helpful for the families to feel as though they are doing something useful and meaningful for their loved one in the ICU, Glassman said.
Since many of the people who work on the Stripe product are users of it (half of them had already used Stripe before they joined the company), they have a good feel for what product improvements might be useful or important.
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Getting involved in social action of some sort is also very useful, as it leads people to feel they are doing something on a larger level, Pearlman said.
Does he feel that that kind of exchange with the press is no longer useful to him?
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