Hey, I'm a sociology student. To get started you should have a look at a book by Christopher Pole and Richard Lampard (2002) called 'Practical Social Investigation' (published by Prentice Hall). I'd imagine your uni library would have a copy if they do sociology or something similar.
Its a really easy book to follow and great if your not really sure where to begin with research. If you have to use 2 methods, you could just use surveys- stopping people on the street and ticking boxes and qualitative, semi-structured interviews- devising a list of 'topics' or 'areas' that you want to cover in an interview then just letting your sample talk all they want about these areas.
I'd definately recommend having a look at that book because it lays things out really simply with examples!!