The video by Kim Guzman shows how you do the bobble stitch made from 4 double crochet stitches (dc4tog) e.g. for LUPOs or BERTS's body and cap. You also use that stitch for the free lalylala blackberry pattern.
loop stitch - version 1
Have a look to that great tutorial by June Gilbank (www.planetjune.com) - she shows how to crochet a tight loop stitch, I used for Loni the Lion.
loop stitch - version 2
And that's another technique of the loop stitch that should also work fine.
Tamara Kelly aka moogly shows you the best way to crochet a picot. You need to crochet picots e.g. for the little tips on DIRK's spikes or for VLAD's cape. If you don't know her patterns and tutos go and check them out on mooglyblog.com