Thoughts on my line here. What should I do if villain calls or 3-bets?

Party Poker No-Limit Hold'em, $0.04 BB (4 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver Cards)

saw flop|saw showdown

Hero ($3.65)
SB ($2.10)
BB ($3.86)
UTG ($1.89)

Preflop: Hero is Button with , .
1 fold, Hero raises to $0.2, SB calls $0.18, 1 fold.

Flop: ($0.44) , , (2 players)
SB bets $0.25, Hero raises to $0.68, SB ...