😅 It is boring! In a formal (eg work) context, it’s still the best answer. Less formally, these are all very common (of course, you can mix and match the umm, yeah etc!). Hope some of these liven up your conversations!
If you’re really well/ happy:
“Oh, really well, thanks!”
“Great, thanks!”
“I’m good, thanks”
“Pretty good, thanks”
If things are just ok:
“Yeah, you know, not too bad”
“Oh, well, I’m ok”
“Umm, just so-so”
“Well, hanging in there” (if you’re in a known difficult situation)
If things aren’t ok:
“Oh, not so good actually”
“Well, things aren’t so great at the moment, I’m afraid”