Playing bottom pair OOP

[AceofSpades]

This is an example hand. I feel like I tend to not know what to do with bottom pair, in SB vs BB confrontations.

What are some good ways of playing it ?
It's a 50+5 if it matters.

Full Tilt Poker, NL Hold'em Tournament, 1,200/2,400 Blinds, 300 Ante, 9 Players
LeggoPoker.com - Hand History Converter

MP2: 49,704
CO: 47,637
BTN: 28,188
Hero (SB): 45,604
BB: 40,258
UTG: 65,312
UTG+1: 50,576
UTG+2: 40,224
MP1: 62,654

Pre-Flop: (6,300) A[img]/images/graemlins/spade.gif[/img] 3[img]/images/graemlins/heart.gif[/img] dealt to Hero (SB)
UTG folds, Hero calls 1,200, BB checks

Flop: (7,500) 3[img]/images/graemlins/club.gif[/img] 4[img]/images/graemlins/spade.gif[/img] K[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">Hero bets 2,400</font>, BB calls 2,400

Turn: (12,300) K[img]/images/graemlins/diamond.gif[/img] (2 Players)
Hero checks, BB checks

River: (12,300) 7[img]/images/graemlins/club.gif[/img] (2 Players)
Hero checks, <font color="red">BB bets 4,800</font>, Hero calls 4,800