playing micros is easy
wait for big hands and then bet bet bet
don't chase draws - calculate the profitability of calling/raising/folding in terms of equity/odds/implied odds
/reversed odds/outs/counterfeited outs
think about your opponents style/range and try to polarize their hand
play hands from middle-late position and play a TAG style, the micros is full of TAPS and LAPS, and while the ultimate cash game players are LAGS, playing TAG will crush 2nl.
lastly don't be afraid to bring it down to one table until your comfortable. It is hard to multitable without practice - EVEN if it is just 2 tables