I no i didnt bet correctly pre flop but i did this because it was a tight table and all previous hands i bet 4BB everybody folded so i decided to min-raise to get some people to enter the hand, was this the right thing to do? Looking at the hand again i think i should have re-raised the flop if not push all in, but i should have deff pushed all in on the turn, would this be a better play than how i handled it?
0.05/0.1 No-Limit Hold'em (8 handed)
Preflop: Hero is UTG+2 with K :spade:, K 
Hero raises to $0.20, 2 folds, MP3 calls $0.20, CO folds, BU calls $0.20, SB folds, BB calls $0.10.
Flop: ($0.85) J :spade:, K :heart:, 7 
(4 players)
BB checks, Hero checks, MP3 checks, BU bets $0.40, BB folds, Hero calls $0.40, MP3 folds.
Turn: ($1.65) 2 (2 players)
Hero checks, BU bets $1.00, Hero calls $1.00.
River: ($3.65) 9 (2 players)
Hero bets $1.40 (All-In), BU calls $1.40.
Final Pot: $6.45
BU held K 6
i didnt put him on the flush draw at all, i suspected either top pair or maybe 2 pair, he had top pair but didn't expect the flush at all, how should i have played this hand?