Generalists, people with moderately strong attachments to many ideas, should be hard to interrupt, and once interrupted, should have weaker, shorter negative reactions since they have alternative paths to realize their plans. Specialists, people with stronger attachments to fewer ideas, should be easier to interrupt, and once interrupted, should have stronger, more sustained negative reactions because they have fewer alternative pathways to realize their plans. Generalists should be the upbeat, positive people in the profession while specialists should be their grouchy, negative counterparts.
— Karl Weick

Everyone in L.A. is very positive and upbeat, whereas London can get quite miserable at times.
Sienna Miller upbeat quote

I suppose there must be some way in which I'm compelled to show some side of myself - or of people - that's paranoid and fraught and beleaguered and downtrodden, just as Tom Cruise wants to show that he's terrifyingly upbeat and terrifyingly heroic all the time.
— Paul Giamatti

He is very upbeat but we hear that all the time from just about any athlete.
— Pat Cash

I'd like to feel that an advertiser gets something extra when they advertise with us - a certain humanity that comes from upbeat and positive human interest letters and success stories.
— upbeat quotation by Casey Kasum