Plopping- Plopping encourages curl. Put a towel (microfiber, flour sack, cotton t-shirt, etc.) at chair height. Lean forward and accordion fold your hair as you lean down. When your head is against the towel, wrap the towel against your head and secure. This is a popular video, but there are tons if you search "plopping curly hair" on youtube.com. In the video, plopping is referred to as plunking.
Experiment with plopping different times. Some people can only plop 10-20 minutes without causing frizz, others can plop overnight. For some plopping will never work. Plopping often doesn't work on short hair, but it worked for my hair when it was ear length.
The Pixie Diffusing Thread on Naturally Curly.com. (NC.com)
Smaster's method thread on NC.com.
Ice Queen Method- The Ice Queen Method helps promote clumps. What is a clump? A clump is where several strands of hair (like a 1/2-1 inch square section) form one curl. The opposite would be more stringy hair where that same 1/2-1 inch section forms several curls. For the ice queen method, scrunch in conditioner upside down until your hair feels seaweed-y. Then, rinse out your conditioner upside down with cold water. Scrunch in your leave in conditioner followed by your gel or curl enhancer upside down. Scrunch out as much water as possible upside down. Scrunch again right side up, maybe adding more product. For some people (like me) this method results in wonky waves, but nice clumps. These links are more NC.com threads.
Explaining the ice queen method.
Big thread about the ice queen method.
Super Soaker Method- This method is also to promote clumps. You coat your hair with leave in conditioner and curl cream. Comb or denman brush your hair. Brush or comb away from the scalp. Bring cupped hands full of water to your hair and up to the scalp. Repeat until your whole head is soaked. Scrunch out excess water from hair.
Link that explains the Super Soaker Method. Video on page 2. This is a concise, thorough explanation.
Link to Super Soaker Method thread. Link to the same video in first post.
Scrunch Out the Crunch (SOTC)- After your hair is dry, squeeze it repeatedly to release the gel cast. The hard gel cast helps hold your hair in a wave shape as it dries. Crunch is your friend. When your hair is 100% dry, scrunch it out. Some people find they prefer to lightly coat their hands with something first. You could use a pea size of conditioner, curl creams, oils, butters, etc. to SOTC or just use your bare hands.
For some, especially those with fine hair, the water's weight will pull the wave downward and pull out the curl as it dries. Diffusing hair helps set the gel cast in a wave shape and remove some of the water weight. Using a gel with a hard hold can also help hold the wave shape.