Always.

a/s/n have stayed in a friend's house

Sometimes

a/s/n pay for dinner when out with friends?

Sometimes, especially on birthdays!

a/s/n stare into a refrigerator full of food and then claim there is nothing to eat?

Hahaha!!!! Sometimes! Especially if I am too lazy to make my food.

a/s/n take your pet outside

Never: there's no need to walk fish :/

a/s/n untie your shoes when you take them off

sometimes

a/s/n smile at strangers?

Sometimes. Only when I get nervous or I noticed they saw me looking at them. Otherwise I stare at the floor. :P

a/s/n spend 10+ hours on a computer in one sitting.

Always..I am good like that. :D

a/s/n change your ha all the time?

Sometimes :P

a/s/n take a long time getting ready in the mornings?

sometimes. not as long as some people tho /:

a/s/n, watch disney channel?

XD Always. In fact I'm watching it right now hahaha

a/s/n have mood swings?

always. i can be totally happy one second then totally depressed for no reason ):

a/s/n, shop at hot topic?

Always

a/s/n get headaches when you are angry?

sometimes

a/s/n, listen to fall out boy?

Sometimes, I rarely listen to music

a/s/n wake up to an alarm?

Never. I don't have an alarm but I do wake up at the right time.

a/s/n slept on the couch/sofa

sometimes

a/s/n bite your fingernails?

Never.

a/s/n eat the whole cotton candy?

Never >.<

a/s/n have coffee every morning?

Never. Not really a coffee person.

a/s/n drink tea?