Can I use an iPhone 5s asn iPod?

Can I use a non-activated SIM card? I got an iPhone 5s but i don't have it activated. I wanted to know if I can just use it as an iPod (with Wi-Fi). When I turn the phone on, i select my country, then my language, then I connect to Wi-Fi and it connects. Then right after that it says SIM required. Can I use a non-activated SIM card until I get an activated one? I have AT&T and the phone is running the latest ios 8

How to deal with a one upper?

So I have this friend and I told her I was going to get an iphone5c and I made sure I wasn't bragging. Today she told me that for Christmas she might get an iphone6 but she literally JUST got an iPhone 5s and she brags about it all the time. And this is not just one time. She does this all the time and makes me feel bad about myself. Can someone please tell me how to deal with her? She constantly does this and tries to act better than me. She also always steals my friends and calls me fat and ugly. Please don't say that I'm stupid and that I should just not talk to her I want to kinda get her back or at least expose her for what she is because everyone thinks she's an angel. To all of you that support me and are helping me Thank you!

Portable Power Bank by Merkury?

I have this Portable Power bank to charge my iPhone: http://www.merkuryinnovations.com/portable-power-bank-2000-mah/
I plan on taking it to a trip to Canada next week because I won't always have access to a wall port to charge my phone. I'm wondering, though, how long the charge in the power bank will last? For instance, if I charge the port overnight on Tuesday and I'm leaving Friday morning, will the power bank still be fully charged and be able to charge my phone?

Are girls annoyed by how small their jeans pockets are?

I was talking to these two girls at school about phones and they said that they don't want to get the iPhone 6 or another big phone because their pockets are too small because they obviously wear female jeans. Do girls find this annoying? Would they like to have bigger pockets?

Spilled smoothie on my iphone and the speaker has stopped working. Any fix I can do at home?

I spilled a smoothie on my iphone this afternoon. I cleaned it up immediately (my case protected the majority of my phone). Everything looked like it was working fine until a friend called me and I could barely hear her call. I think some of the smoothie might have clogged the speaker near the top of the phone (the one that you hold up to your ear during phone calls) because she sounded very muffled.

I'll take my phone to the apple store if I need to, but if there's a way for me to fix this at home, I'd love to save the time and money!

Any techies out there with some advice?

Iphone 5 lock screen is frozen, can't unlock phone?

Iphone 5 lock screen is frozen, can't unlock phone?

Added (1). My touch screen won't work with the exception of assistive touch. I can't turn my phone on and off because when i hold down the "lock screen" button on assistive touch, i'm unable to slide to power off. I have a password on my phone so i can't use siri to open any apps either. Any suggestions?

Added (2). also the power button is broken

Having trouble with my Iphone? - 1

I have an Iphone 5 and I bought it about a year and a half ago.
The thing is that every time I put on the headphones provided with the cellphone Siri turns on at times even without me pressing the home button., and sometimes calls end without me pressing anything(same thing goes for watching videos and listening to music). And it is so annoying. I tryed turning it off and on again, updated the latest version of IOS but nothing worked.
And these only happen when I have my headphones on.
Do you have any idea why these problems are occurring and how can I fix them?