OOP question

I don't really think I check/raise enough and I play a straight forward game, which works. But I'm trying to find times to c/r. Is this a good time to c/r given my relative position to the raiser or should I just be straight forward? For sake of arguement let's assume the pfr will bet when checked to.

PokerStars No-Limit Hold'em, $0.50 BB (9 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

UTG+1 ($48.50)
MP1 ($22.50)
MP2 ($6.35)
MP3 ($19)
CO ($63.15)
Button ($44.25)
SB ($85.90)
BB ($39.20)
Hero ($49.50)

Preflop: Hero is UTG with 6, 6.
Hero calls $0.50, UTG+1 raises to $2, 3 folds, CO calls $2, 2 folds, BB calls $1.50, Hero calls $1.50.

Flop: ($8.25) 6, 9, 4 (4 players)
BB checks, Hero...

defffinitely C/R here for the reason you mentioned

Lead. 4-way, it's likely missed broadways aren't c-betting (for sake of argument, although he might, second-to-last to act) and you need to make flush draws pay. HU I don't mind a c/r.

I like the check raise here. The possibility of catching a caller or two in between is too tempting.

If you are fairly certain that UTG+1 will bet the flop then it's not a bad spot for a check-raise...problem is that you will probably take it down on the flop doing that because if CO and BB call then you will have to raise painfully high or even push the flop...I would tend to lead out in this spot.
And I would raise preflop depending on the table structure and my image/prior actions etc.