Pincurls are very easy to achieve:
Grab a lock of hair and roll the end around your finger. then take this little curl and roll it up towards your head. Then pin it on your head and do the rest of your hair. Now, all you have to do is wait for it to dry.
(If you search for pincurls on Youtube, there are lots of videos to show you)
I don't really own the right brush, and didn't want to use hairspray, so the curls are a bit frizzy.
I didn't use any hairspray to set it, because I didn't want to ruin my newly washed hair, but also because I wanted to see what kind of curls there would be the day after: