help mwe with my profile

I have just put a question on and from past experience people always tell me that it would be helpful if I add my cars details/ model etc to my profile so it appears on all my posts.
Only problem is that I have looked at the profile page and can't work out how to do it. Can a computer person give me some instructions please.

Login and go to "Home Page" (link is near top right hand side)
Click "Edit Profile" (button is on upper right hand side)

you can fill in information and attach photos there.

Martin, you can also click on Control Center in the upper right corner of the screen and then Edit Signature. You can add additional information about your car - and you - there.

Yeah, but how do you attach a photo to the signature like John has?????

Have fun

Home page, edit profile. near the bottom of the edit page, you'll see a browse button to look for a photo on your hard drive.