1. optimistic
Try to be more optimistic and you'll see how good things will start to happen to you!
I have studied hard and I'm optimistic about the upcoming test.
He is rather optimistic.
The optimist looks into a mirror and becomes more optimistic, the pessimist more pessimistic.
How can you be so optimistic about the future?
She’s very optimistic and always looks for the positives.
Lyusya adores social-realistic novels. They're very optimistic.
I would feel more optimistic about a bright future for man if he spent less time proving that he can outwit Nature and more time tasting her sweetness and respecting her seniority.
This business plan of yours seems almost too optimistic. All I can say is I hope it's more than just wishful thinking.
I’m quite optimistic about moving to London.
I know that learning English is not as easy as it seems but I am quite optimistic I'll learn it sooner or later.
Lucy took an optimistic view and knew everything would go well.
Although his life hasn't been easy he remains strong and optimistic
Emotionally intelligent people are usually very optimistic
Even if he is in trouble, Mac is always optimistic.
2. upbeat
Let's keep things upbeat please.
What's your favorite upbeat song?
The meeting ended on an upbeat note.
Alice had a perfect meal and was feeling upbeat.
I'm looking upbeat for my future
The players seemed upbeat about their chances of winning.
A salesman with an upbeat attitude is more effective.
The upbeat projects assumes that I will find a new job quickly.
DJ's create upbeat music to get the crowd dancing at gigs.