i have been seeing this a lot lately, but am wondering if they are bluffs? i am not convinced they are...since they look like bluffs, it may be a bet into the aggressive with some kind of hand, but...

how strong is it to do this? can it beat TPTK? or is it a scared 2nd best?

villain in hand one is semiloose and aggressive. been buying a lot of small pots, but havent seen him float yet...or try and steal a larger pot. doesnt mean he's not capable, as i've only been at the table for 30ish hands.

hand 1...

PokerStars No-Limit Hold'em, $0.25 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

MP ($28.85)
CO ($24.65)
Button ($38.85)
SB ($29)
Hero ($27)
UTG ($9.25)

Preflop: Hero is BB with T, K.
UTG calls $0.25, 2 folds, Button calls $0.25, SB completes, Hero checks.

Flop: ($1) K, 3, 6 (4 players)
SB checks, Hero bets $0.75, UTG folds, Button calls $0.75, SB folds.

Turn: ($2.50) 5 (2 players)
Hero bets $1.5, Button calls $1.50.

River: ($5.50) 7 (2 players)
Hero checks, Button bets $9.75, Hero ??

villain in hand two is VERY tight preflop. therefore, nothing on him post flop. i bumped him off a hand with AK that i had to 3bet on the flop to take because he minraised me. i, then stole his blind from the button and i suspect he was laying for me, but this looked like a "lets see how you react to this bluff."

hand 2...

PokerStars No-Limit Hold'em, $0.25 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

CO ($25.65)
Button ($8.95)
SB ($39.30)
BB ($28.15)
Hero ($25.90)
MP ($53.85)

Preflop: Hero is UTG with K, K.
Hero raises to $1, MP calls $1, 4 folds.

Flop: ($2.35) T, 6, 8 (2 players)
Hero checks, MP bets $1, Hero raises to $2, MP calls $1.

Turn: ($6.35) 9 (2 players)
Hero bets $2, MP calls $2.

River: ($10.35) 7 (2 players)
Hero checks, MP bets $9.75, Hero??

wtf do these river bets mean...im confused?