Posted: 20/06/2016 at 13:41
I'm 100% 'remain'. I'm emotionally and ideologically in favour of a united Europe, but I also genuinely believe that people in Britain are better off in the EU, and that workers' rights (among other things I think are important) are more likely to be protected if we stay. And I also believe that the EU (of which we are still, for now, a part) will also be better off with Britain in it.
However, if you are still not sure and cannot be firmly persuaded either way before Thursday, I think you should abstain.* This shows that you are participating in the democratic process, but that you don't want to or don't feel able to answer 'yes' or 'no' to this particular question. That's also a political statement.
*(except that if I personally wasn't sure I'd vote 'remain', actually, because we're much more likely to have another chance to vote out than we are to be able to get back in again if it all goes horribly wrong.)