It has been suggested that to be interesting you have to be interested.
I don't do it with the aim of looking interesting from the outside, but I do value the emphasis on being interested- and the encouragement to follow up on whatever interests you. I think of them as 'whisker twitchers' you might not know why they catch your attention but something about it reaches out and hails you, makes your whiskers twitch, and so I try and notice them, and follow up.
Having been a lifelong bookworm and have been accused of inhaling books. Having had little money for a long time I spent many years not allowing myself into bookshops and viewing them as an expense I couldn't afford. Libraries are great and I still use my local voraciously. But it doesn't have everything I want to read, so now I allow myself to buy things that interest me and actively look for and note references to other books that also sound interesting. My wishlist is getting longer & longer!
One book I read recently is Wildwood by Richard Deakin. True to form I zipped through it fairly quickly while my ankle was recovering. One line struck me particularly forcefully - although when I went back to look for it with a pen and paper I couldn't find it.
Perhaps the words dance a little in the mind to give you the words you need, even if they aren't exactly on the page...
Have you read anything inspiring recently that made you think differently?