Large raise goes bad

My stack: 195 chips, opponents stacks: 105 chips
Blinds 3/6, levels raised every 15 minutes
My hand: 7, 7, in the big blind
Action: Opponent raises it to 12 total.
Answer: An opponent raise on the button is a common play in heads up. With two 7's you probably have the best hand right now. I would recommend calling about 40% of the time and raising about 60% of the time. I prefer to raise here because with just a call, its hard to figure out what cards he could be holding and in the big blind you are going to be acting first post-flop. Here, I would recommend making a raise somewhere around the size of the pot. You should mix it up and raise a little less then pot, pot, and a little more than pot to make it hard to read what you have.
Action: I actually raise it to 44 total. Opponent moves all-in and I call. He shows two aces.
Answer: Although the two 7's end up taking the pot with a straight, it was the wrong play pre-flop. By making a raise significantly more than the size of the pot, the odds being offered by the all in made it a tough fold. The pot was 149 and I only have to put in 61 more for a call. With odds a little less than 2.5-1 the call was justified as i was a slight favorite against AK, AQ, AJ, A10, KQ and about a 4-1 underdog against any higher pair. The real mistake made here was a 3 bet that was too large, practically pot committing myself into a call if he were to move all-in. A better play here would of been a raise of 20-28.

Tough Spot

http://www.youtube.com/watch?v=c7nDEBkPN-E
In this playing situation Phil Ivey's opponent is put into a tough spot. Both players have very good hands and neither one of them want to fold. Phil Ivey knew that he couldn't lose so he went all in hoping that his opponent would call him. This move forced his opponent into a tough spot because he had a full house which is a very good hand but Phil had quads which was superior. This hand was very well played by both players and its rare that both players had such good hands.

Types of Players at a Table

There are three basic types of poker strategies - conservative, aggressive, and super-aggressive.
Conservative -
- Play less hands with more strength
- Play hands that make decisions easier post-flop
- Avoid all-ins unless really strong (AA, KK, QQ)
- Win the big pots and try to double up with strong hand
Aggressive -
- Play all pairs, face cards, ace-x, suited connecters
- Win all of the small pots
- Play several hands, makes it harder to read you post-flop
- Put in harder situations and have to be able to make a discipline fold
Super-agressive -
- Aren't many starting requirements, play any two cards
- Play many pots and see several flops cheaply
- Hard to look at a flop and see if one of these players hit the specific flop
- To be successful with this strategy is much more difficult and requires a lot of observing at the table