Will I get charged for using my iPhone abroad?

I'm going to Holland tomorrow and I was wondering if I would get charged for taking my phone with me? I'm on a pay monthly contract but it doesn't include roaming/ international things…
I'm with the 3 network if that makes a difference…
I won't be calling anyone or making texts but I'll probably be using Wi-Fi? Will I get charged just for taking my phone to a different country even if I don't use it at all?
Any help appreciated, Thanks.

Survey: iPhone 4s vs Any android phone?

Just taking a survey which phone you like more. And can you tell me why do you like Android? And to iPhone lover I know why you love it cos I'm also love iPhone too but I don't know why people love Android more? I used it once just a couple week ago and I can't bear it just two days I changed back to iPhone. So to all Android user why do you like android?

Prices of iPhone 4S in Dubai and Qatar?

Since the launch of the iPhone 5, does anyone know the current price of the iPhone 4S 16GB in Dubai and Qater? Where is it cheaper?

I need a new cellphone as my current iPhone is not functioning well, and the iPhone 5 is out of my price range.

I will be passing through both these places on business and would like to know the lowest price I can expect to pay for a new iPhone 4S 16GB, and where it is cheaper.

Does someone who is blocked still get notified if i favorite their tweet?

I had blocked someone on a twitter but i went on the computer to veiw their profile and accidentally favorited one of their tweets but i immediately unfavorited it after. Do they still get notifed on their Iphone that i favorited them or they can't because i blocked them? Please answer as soon as possible. I Know that i'm still able to put their name in a tweet of mine or retweet and stuff, but will they get a notification?

Slow wireless connection to my iPhone?

It's 0752 so it can't be all the beighbours downloading and my computers turned off, the router is just sat there as normal, nothing has been changed but the wireless connection on my iPhone is really slow. I'm using it in the same room as the router. Any ideas what it could be?
Happens all the time, in and hour or two I'll try it and it will be fine.