I judge a grown man or woman if I see them play some tedious game on their smartphone
It's not your business.Why do you judge people for playing games?
I feel that I might look lame if I play it.
You should not judge anyone for playing games. Some people use games as a way of relieving stress.
I'm not going to play those games so that I don't look lame
Do you really think people would really judge someone based on the kinds of games they play? You might be missing out on a lot of fun by gatekeeping yourself. How about trying out the same game, you could actually like it a lot.