in reply to Chris Hall

Ok, I remembered that it asked me whether I wanted to upload a profile picture when I created my account, and I did,
but then I wanted to change it, and it was a lot of clicking around to find where, but I managed in the end,

and now when you asked, I figured, let's find that again ... and I clicked about everything, and almost gave up, BUT: I found it -

go to Settings → Profile, i.e. friendica.world/settings/profi…
then top-right, choose drop-down menu Profile actions
and then (either Change profile photo, or) Upload profile photo

HTH - Hope that helped!

in reply to Chris Hall

also, just so you know...if you go to your profile page, at the top, under the search bar, you should (I say should because I am never quite sure where things really are when I find them) see a little blue v. If you click on that, a menu should come up with"quick tips" to help. I have joined Friendica support (I think there are two groups) and people who have questions post there. They are all volunteers for this platform, so sometimes answers take a while.