How do you....?

[yessy_89]

Hello I'm new to this community and I like it very much. I was wondering if someone would tell me how to do something I have been seeing around tumblr a lot. It's three pictures together in one.

The photo I have is big so I will put it under the cut



cr: holydolphins @tumblr

i have PS CS4 exrended so yeah. Can someone help me? :) Thanks