6 solid ways to know if your girlfriend just slept with someone else

4. When her make up is neatly done

Another way men get to know if their girlfriends have been doing stuffs behind them is through their appearances. Women, in a bid not to draw attention to themselves and what they have done try reapplying their makeup. Some men who know their women well enough may feel like it is out of place for them to have their makeup reapplied at a particular time of the day. Also, they make effort to look fresh by applying perfume on their bodies for freshness.