first post...and a hand history

hey everyone,
long time reader. I just started playing for real money a few days ago. I got 10 free dollars from Royal Vegas Poker so I figured what the hell.
I play tight and am aggressive when I can be.
I've definately learned a ton from this site..thanks everyone.

Here's a hand that bothered me.
dasari is a terrible player. In 20 minutes he bought in 3 times. He was showing down nothing....absolutely nothing...called an all in with all 5 cards out with nothing.

I figured dasari had nothing but after the 8 came and the other guy called I figured he had the straight, but then he folds on the river.
I don't understand how people play at these limits.

What would you have done?

*** Export for: neva07 Game: Texas Holdem Game number: 330251695 ***
Date: 4/27/2005 10:11:44 PM
Game: 330251695: Table: Blue Dun
Normal Table No Limit 0.10/0.20
Rake: 0.30
Seat: 1 neva07 dealt [10s,Qd]
Seat: 2 elmaco15
Seat: 3 Zodor3
Seat: 4 Pok3rmon
Seat: 5 Robbie24
Seat: 6 dasari
Seat: 7 Weerrt
Seat: 8 minis
Seat: 9 pedro57
Seat: 10 MrAstro (Dealer)

------------------
OpeningBetRound
------------------
neva07 : Posts small blind 0.05
elmaco15 : Posts big blind 0.10
pedro57 : Posts 0.10
Zodor3 : Calls for 0.10
Robbie24 : Calls for 0.10
dasari : Calls for 0.10
Weerrt : Calls for 0.10
minis : Calls for 0.10
pedro57 : Checks
MrAstro : Folds
neva07 : Calls for 0.05
elmaco15 : Checks
------------------
Flop [10C, QC, 9S]
------------------
neva07 : Bets 0.50
elmaco15 : Folds
Zodor3 : Folds
Robbie24 : Folds
dasari : Raises for 1.00
Weerrt : Calls for 1.00
minis : Calls for 1.00
pedro57 : Folds
neva07 : Raises for 2.00
dasari : Raises for 3.00
Weerrt : Folds
minis : Calls for 3.00
neva07 : Calls for 1.50
------------------
Turn 10C, QC, 9S, 8H]
------------------
neva07 : Checks
Pok3rmon : Sits down 0.04
dasari : Bets 4.20
minis : Calls for 4.20
neva07 : Folds
------------------
River 10C, QC, 9S, 8H, 10D]
------------------
dasari : Went all-in 5.40
minis : Folds
dasari : Mucks cards


------------------
Result
------------------
neva07 Mucked Cards
elmaco15 Mucked Cards
pedro57 Mucked Cards
Zodor3 Mucked Cards
Robbie24 Mucked Cards
dasari Mucked Cards (Winning) 27.30
Weerrt Mucked Cards
minis Mucked Cards
MrAstro Mucked Cards
Pok3rmon Showed Cards

by the way..this hand history format is terrible...I had to change it all around.

Dont min raise with two pair vrs a coordinated board into a big field. Its an easy call for everyone and you're hand, though probably the best, is very vulnerable.

-'rilla

I tried to bet closer to 2/3 the pot $.50 into a $.80 pot. This is at a 10NL table.
Should I have pushed when reraised by maniac man?
Anyone else's thoughts?
Trying to improve my game.
Thanks