personally, what i do or did at bar tournaments was what i would call Catch and Smash. You don't have to get creative with these people. my first small blind I might get J3 off suit, blinds are 10/20 and I fold. Everyone else would limp. I would have great implied odds
to call, but honestly, how many people am I going to stack off hitting 2 pair or boat or something. Very rarely, cause they didn't have anything. Play hands that tend to be the nuts. 9T, TJ, QJ, for the straight. Play Ax suited for the flush. You can even play 68 suited for cheap. When you have AA, make it 5BB. You will still get 2 callers. If on the button or the cutoff with AA and it limps around to you, put 1/3 of your stack in(provided it's still early and people still have some chips to play with) on the flop, unless something looks fishy, just shove it. Someone will call and pay you off. Middle and late stages of the tourney, half stack in preflop, other half post flop. The main thing is, when you have the nuts on the flop or turn, don't be afraid to be 2x the pot or sometimes 3x the pot. You don't have to get fancy with 3 betting light or anything. No reason to do sophisticated stuff. Don't bluff these guys. You don't have it, now worries. Don't worry about the size of some donkey's chip stack. He's just keeping them warm for ya.
This was a long time ago, many years ago, but I made the final table with just 3 chips(1k chips). I was shortstacked and I got lucky. I had small pocket pair and said "I'm all in" every says "good luck all in" I get 4 or 5 callers flop a set and now I have 15-18 chips. within 2 orbits, I caught 77, and stacked off another guy. So now I have around 30-40 chips. Cards go to dead for a while, and I found myself with around 16 chips and blinds were 2/4 chips. My opponent had slightly more than 100 chips in his stack. First hand, he puts me all on, i fold. On his big blind, he put in enough chips that i would have to go all in to call. I fold. Next I catch Ax. he shoves I call. I boat up. Now i have a few more hand to fold. This went on for another 10-15 minutes or so, then I finally caught a hand and took a nice little chunk out of his stack to the point he had to look at his cards now. Now the game is on. Since I know he's going to be super aggressive, I just rock up. I pounded him and once the chip stacks were even, it was over. It was only a matter of time before I had big hand against his weaker big hand. I only tell you this because, you're not going to win every single night(although one week, I win 3/4 tourneys) just solid abc poker. Nothing fancy, don't need bluff. Don't need 3bet light. No need to Cbet if you miss. When you have the hand, smash'em. Instead of betting say 1/2 pot, 2/3 pot to discourage a draw, Bet 1.5pot on the flop and when they call if they miss their draw, shove. They will always tell ya, I didn't think you had AA. Well of course you didn't. What moron chase his 2 pair into trip aces. I didn't think you had the A high flush. Well of course you didn't. If you didn't you would call my shove with K high lol.
The main advice I can tell you is don't think in terms of poker moves. If you have squadoosh on the button, fold it. Real late, you can get away with some steals but you still need nice hands to back it up. Don't waste your time chasing cards or anything. When you have the best of it, punish them. Yes, some of them will call and hit but it happens. You'll be making way more money and prizes than they will.
Most importantly, you're at a bar, have fun. Relax and enjoy your night