What is the hairstyle called with two buns?
Double or pigtail buns are often called odango (お 団子, odango), which is also a type of Japanese dumpling (usually called dango; the o- is honorific). The term odango in Japanese can refer to any variety of bun hairstyle.
How do you secure a side bun?
Secure the bun. Bobby pins work best for this. Use additional bobby pins to fasten the sides of the bun to your head, as well. Spray with hairspray for a long-lasting hold. If any loose strands begin to poke out, pin them into the bun.