Generally, being mindful to play only the best hands pre-flop is a good idea... especially if you don't know the behavior of your opponents.
Having an Ace paired with another face card is a good hand. For example:
ak AQ aj
Having two face cards can be considered good hands, such as these:
kq kj Qj
Also, medium and higher pairs are good hands to play:
77 88 99 1010 Jj qq kk aa
Time to throw in some poker terminology here: the hands that we choose to play when we're the first player to enter the pot is called our "opening range."
As our position at the table gives us an information advantage, we can afford to play a few extra hands from the dealer button. You can try playing what are called "suited connectors," such as, 56 or 89 from this position. As we are playing more hands from the button, our "opening range" is "wider here.
Remember: if our hand is good enough to enter the pot, it's good enough to come in with a raise. With all this in mind, have a go at the questions and see how you do.