Telling if someone is cheating is probably one of the hardest things to detect. There are some obvious tell tell signs that you need to look out for, but remember there may be a genuine reason for some of these so don’t accuse someone of anything without firm evidence. If you suspect someone is cheating, something has made you feel this way, if your partner has started staying out late, or working later than usual this could be a indication something is wrong. If your partner has changed his or hers appearance or making more effort then there could be another reason. Most cases are genuine but if you have suspicions then possibly sit down and talk through these with your partner.