What is your motivation for playing poker?
Well, just liking the game, I guess. It's the combination of skills and the chance of winning (or losing) money.
What are your weaknesses when playing poker?
Post flop play. Making a 'line' of how to play further with the hand. So planning and deciding, I think, what to do after each street.
What does it mean to play tight aggressive?
Only play a percentage of (best) startinghands, depending on position. When one of these startinghands comes along, play it with a raise, or reraise. Never (mostly not) limp in. Also after the flop, play the hand with confidance.