Vraag is spelled with a V not an F 😉
And both alsjeblieft and alstublieft. Like French and German, Dutch makes a distinction between you (normal) and you (polite). The normal form of you is jij (or je) while the polite form is u. When you're handing over or asking for something to a peer, you should use alsjeblieft. If you want to do the same thing but to someone you don't know, or someone who is older, or just someone you hold in high regard (like a college teacher) you should use alstublieft.
The use of u and jij is a difficult subject. It's down to user preference. Some people only ever use jij, while some others only reserve jij for friends. Some people from older generations address their parents with u, while almost no kid today does that. On the street and in shops, it's even harder. If you're in an expensive shop and the clerk helping you is significantly older, u is your best bet. If you're in a hip and funky shop and the clerk is your own age, he'll not be insulted when you use jij. I would think that most people don't really take offence when you address them with jij, even when they're not used to it. Especially considering the fact that you're foreign, people would probably be lenient on this matter.