Long time lurker here at BTP, thanks for looking.

After a couple months of not playing, I take an invitation to a game. Table is six handed. To my left is LowKey. Never played with him before. Seems pretty tight pre-flop, haven't seen him do anything but check and fold post-flop. Next three players are Hostess, RockStar and Clueless. Hostess is also unknown, seems loose-passive both pre and post-flop. RockStar is a good lag who I've played with for many years, but he wasn't really involved in any of these hands. Neither was Clueless, a terrible station who never has any idea where he is at. To my right is Hippie, a wannabe poker expert and obsessive TV poker fan. He is laggy and seems to understand the math, but has a tendency to get fancy and hope for best case scenarios. I've crushed him in the few times we've played together, and he must have some measure of respect for my game. The table is playing fairly passive, about a third of the pots are limped. I've shown down one hand - limped [3s] OTB behind two limpers, Hostess raised to 1.50 from the BB, everyone called, 4 to the flop. Flop [9s][3h], Hostess leads for 3, two folds, I make it 10, she thinks and calls. Turn is a blank, goes check-check. River is , she leads 10, I call and beat her A9. So...

1. LowKey limps UTG, Clueless limps OTB, Hippie calls in the SB, and i make it 2.50 to go from the BB with [Qs]. Only LowKey calls. He starts with ~$45

Flop (6.50) [9d][4s]

I lead for 4, he makes it 8. I ....?

2. Hippie is running hot. RockStar and Clueless handed him a stack each in the last orbit betting into monsters. Hostess and Clueless limp and Hippie makes it 2.50 OTB. I call in the SB w/ [4h]. LowKey folds the BB, Hostess folds and Clueless calls. I start the hand with ~$80 and Hippie covers.

Flop (7.50) [7h][5s]

Checked to Hippie who bets 6, I make it 18, Clueless folds and Hippie calls after some thought.

Turn(43.50)

I ...?

3. Hostess raises to 1.50 UTG+1, Hippie calls in the SB and I call in the BB with [4c]. I start with $110 and Hippie covers.

Flop (4.50) [Jd][4s]

Hippie checks, I bet 3.50, Hostess folds and Hippie raises to $10. I ...?

What do you think I'm up against in each of these hands? How are my lines so far? I will post further streets as responses come in. Feel free to rag on my bet sizing and hand selection.