I find I rarely get offered draws here, although when I do I will often have a bit of a further probe into the position to see why the offer was made.
It doesnt always work out, after all when you decline a draw offer you are effectively saying that you are wanting to win the game and can look rather silly if you dont.
In this game I was offered a draw on move 21 but declined it because I was uncertain about our other game. It actually turned out I won the other game but lost this one by a bit of a dodgy exchange sacrifice (although if I had not blundered my g pawn away it was probably quite a resonable position for me)
So the advice is, if you decline a draw offer then you better be winning the game or it was a bad move.