If you have a strong hand and want to see a flop remember your odds
of winning are diminished when many join the pot, so if you have hand like JJ, then bet high enough preflop to make most people fold.
If you have a suited connector like 5-6 spades, then you are hoping to get a strong hand that would have more equity against many players so you might wish to limp in.
You must be conscious of your position at the table especially with hands like AK. If you call from an early position and do not hit a high pair on flop you re either forced to bluff which is often a bad habit in tournaments (IMO), as many fold, but the people with hands that start calling you can dent your stack.
So if you do not hit flop with AK from early position you are best to fold.
If I play A-Rag. I like to do it from late or button and bet high enough to make most competition fold 3xBB type thing. Then you can at least make the standard button/position bets if you re checked to and steal the pot.