it depends on the client. i think damus just added a twitter link renderer so it shows up as a little box at the bottom of your note. most other clients have something similar
example
nostr:note18cg88sqh02h4s4s0dt7syq3sey408fpyjp7pxaxhl58v0z4wz45svpyjf3
Please Login to reply.
or heres what it looks like on damus if youre on a different client
Ah, that’s well done… I’m on Damus, but was looking at my own post, but I think I had a vxtwitter link - not a standard Twitter link.