Here is some advice from LearnTexasHoldem
"When you play 54s or 76s or 98s, you are looking for a big flop. A big flop would be a flop in which you caught a flush draw or a straight draw. You could catch two pair or trips, but that isn't likely enough to make calling worthwhile; in that sense, any two cards would work. Top pair or middle pair sometimes will win, but most of the time these hands won't be strong enough to stay ahead against the competition. Since the hands do best when we have ample odds
in our favor, we need to play them in spots where we are sure we will get that cushion to try and hit a flop. Late position is obviously better than early position when we are trying to see what other people are doing before we make our move. Limit holdem offers people a greater chance to play suited connectors than no limit does. Often times the raise preflop will too large in no limit to give the suited connector a look at the flop. Also, most of the time if there is a raise preflop in no limit, the amount of people in the hand will only be 2 or 3. That situation is not ideal for a little hand like 8s7s.
Now for some exceptions. Suited connectors are nice hands to play out of the blinds with, if the price is right. Suited connectors are also playable in late stages of tournaments when the blinds are increasing and your chances for a high strength hand are waning. Make no mistake though, 5s4s does not play well heads up.
Let me finish but by saying that -- in no limit holdem cash games only -- I like getting in with little hands like 35s or 46s, etc. I won't pay much to see the flop, but if I can limp in or pay just a small amount, then I can occasionally break someone"