When someone is obligated to do something it means they have agreed to do something or a situation they are in requires them to do something.  It is similar to a duty or responsibility.   Example:  If I go to the car dealer and decide to buy a car, but I don't have enough … Read more

1) you can carry on multiple, simultaneous conversations; 2) in noisy environments (or without removing headphones); and, most important for some, 3) your parents can't overhear what you're are saying.
 
Texting while driving is astonishingly dangerous, but please do not confuse that limited behavior with the technology and sociology of texting in general.  It's kind of … Read more

Yes, absolutely!  It was a significant "invention" (by the Arabs, I think) in the development of mathematics.  Do you consider Black a "color"?  In fact, it is the absence of all color.

Relax, be cool.  Don't smother him, but let him know you're there when he's ready to talk.  Maybe his computer is broken or he's got a deadline at work.  Could be anything; sometimes life brings the unexpected.  Pick an unrelated project you haven't been able to "get to" and put some time in on that.  Before … Read more

Communicate sincerely and try to find out what their issues are.  let them know how it makes you feel when they treat you certain ways (both good and bad).  if their concerns are about things you can not change, well, don't try - it will only drive you crazy.  if you can make a change for the better … Read more