How to make signatures in photoshop pics

[CortezBanks]

So took some pics of my buddys Tiburon last week and was wondering how to make a signature or something like that to put my name in the corner.
something like this ----->

Thanks cabezzzdb8

 

[g3teg97]

Just FYI, check the user name right above that one...I made that signature...

I can make a tutorial if you'd like.

 

[CortezBanks]

o damn my bad i didnt even see that. sry man. umm yeah a tutorial would be greatly appreciated

 

[Aussie]

Yea 93Teg97 a tutorial would be great, i've been wondering how to make these for ever now.