Full Tilt Poker Game - $0.10/$0.25 - No Limit Hold'em - 9 handed
First hand after joining the table but I have watched 2 orbits before joining. Villain has noticeably raised and bet in quite a few hands and my first impression was that he is not a nit. His bets and raises also seem "educated". I am in BB with $25 and look down at [

]
UTG+2 raises to $1 after being informed he has 15 seconds left to act. His stack is $39.60. It's folded round to me.
Question 1 - Call, Raise or Fold?It's a bit nittish to fold but being OOP 9-handed and not 100% read it wasn't strong enough to raise so I called.
Flop - [

] - Pot = $2.10
Question 2 - Check or Bet and how much?
I checked and villain bet the pot $2.
Question 3 - Call, Raise or Fold?
I raised to $7. I had in my mind here if I checked and he made a CB I would raise to represent a strong hand and also to try and determine his hand (or possible range). I also believe most people who have just saw a player join the table and bet aggressively straight away would believe they have the goods rather than the opposite.
Villain calls.
Turn - [

] Board now [

] [

] - Pot = $16.10.
You have $17 left, villain covers you.
Question 4 - Check or Bet (and how much)? What does the villain have?
I'll wait for a few replies before adding any more.