What do penguins wear on their heads?

Age: 16
Height: 5'4" (165cm)
Weight: ~120 pounds (55kg), mostly because of muscle.
Medical info: Healthy (if tiny) high schooler! He's slim, but hella toned thanks to swimming.
Eyes: pink because anime
Hair: Blonde
Physical traits: Short! Hot bod! Maybe seems a little younger than he really is? Also, he probably smells like chlorine.
What's okay to mention: ANYTHING. If your character is Japanese/would know Nagisa is usually a girl's name, feel free to bring it up. He's used to getting made fun of for it. 8Ib
Abilities: Swimming! Eating! Violating your personal space!
Hugging/kissing/other non-violent physical contact: GO FOR IT. Nagisa sure will. :>
Maim/Murder/Death: sob NO THANK YOU
Cooking: You don't want him to cook for you.
Other: Most of his icons show him in his school uniform/swimsuit, but he's probably wearing normal clothes in Camp. Sort of.

[about an hour after A Certain Event, someone's getting a distressing text message]

Mako-chan! Come to the cabin ASAP (ლ `Д ́)ლ this is a matter of LIFE AND DEATH