It can be how a person approaches things as how they appear to others.
I tend to tell people "fine, doing very well, all lovely, this positive thing happened recently..." even when I'm not fine. "Tired" is my default answer to people asking how I am if I'm not feeling good.
So most people, including people I know reasonably well, wouldn't know that I've had a pretty bad last 18 months.
I know other people who can make a melodrama out of going to the shops and will tell anyone who listens and stick it on FB.
Neither way's right, or wrong. It's just different ways of coping with the situation.
But also there can add into it how people approach the situation. It doesn't always affect what happens but sometimes how you react can make you appear lucky. I've told this story before, but I had one time when we arrived at an event (without tickets) and all tickets were sold. We got in. There were certainly 100s of people who were there before us and didn't get in. So why?
- We were lucky.
- I realised we wouldn't get in so decided to make the best of it (by having a picnic outside) rather than ranting at an official or just going home
- I took the opportunity offered (chap said "follow me to get in" so I risked it)
Yes. No denial, we were very lucky. However if my actions of 2 and 3 had been different then any amount of luck couldn't change it.
I don't believe that people are lucky/unlucky people because that means nothing can change.
There was a story my grandad used to tell about luck. You have to say at the end of each sentence whether he was lucky or unlucky.
A man fell out of an aeroplane
Unlucky
He had a parachute on
Lucky
It didn't work
Unlucky
Directly where he was falling was a haystack
Lucky
There was an upturned pitchfork on the haystack
Unlucky
He missed the pitchfork
Lucky
No, he was unlucky, he missed the haystack as well.