Stars 50K Guaranteed - The Dreaded Min Raise

[Doylestown]

Been playing with UTG+1 for a while. He's been very active limping like 50% of the hands and calling every reraise. This is his 1st raise of the tournament. How should I interpret it and what do I want to do here?

PokerStars No-Limit Hold'em Tourney, Big Blind is t200 (9 handed) Poker Stars Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

UTG (t4230)
UTG+1 (t5555)
MP1 (t6745)
MP2 (t2185)
MP3 (t9763)
CO (t2875)
Hero (t13560)
SB (t4470)
BB (t6775)

Preflop: Hero is Button with J[img]/images/graemlins/spade.gif[/img], J[img]/images/graemlins/heart.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">UTG+1 raises to t400</font>, <font color="#666666">4 folds</font>, Hero?