Never think that women don't notice men's underwear. In fact it can be make or break if you get your presentation wrong when she first sees your boxers or briefs. Get them wrong and she might be gone!
Men's Health asked 1000 women what they really thought when the trousers come off and the results make essential reading. Tatty, stained kecks are an absolute no-no. Seems the fairer sex aren't fond of tighty whities either. Check out what they DO like here: