One thing that is a good starting point before even looking at the IR or NMR is to calculate the number of degrees of unsaturation, a.k.a. the hydrogen deficiency index. This will suggest things to look for in each spectrum.
The n+1 rule is a way of saying that (given certain conditions) the number of lines within a signal is n+1, and n is the number of equivalent hydrogen atoms that are coupling with the signal in question. Most coupling encountered in introductory organic chemistry happens because one group of hydrogens is three bonds away from another group of hydrogens: Hx-C-C-Hy. The three bonds are the hydrogen-carbon, the carbon-carbon, and the carbon-hydrogen.
However, hydrogen atoms on aromatic rings often fail to follow perfectly the first-order rules that are taught in introductory organic courses. Therefore, I suggest that you look at other pieces of information available to you in the H-1 NMR, such as the number of peaks and the integrals. You also have a C-13 spectrum that is helpful.