How to spy without getting caught

How to spy without getting caught
1. Spy on his credit card bills
Check if he spent money on flowers, jewelry, hotels and anything your partner could use the credit card to buy. Then see if those stuff match the date he gave them to you. If not, you can be pretty sure now.
2. Check his short pockets, wallet and his car
Find any receipts especially those which are from hotels and restaurants and then also check his cell phones for any unfamiliar phone numbers.
3. Check the phone bill
Check his cell phones for any unfamiliar phone numbers and also check the times he received or made those calls. For example, if he usually calls one number when he is not with you, it is a good clue. You might want to try calling the numbers to check who the numbers belong to. You should use a public phone so that your own number won’t get recognised. Do not say word when someone picks up the call, you just wait and listen if the voice is familiar to you as she could be someone you and your partner know.
4. Check his car odometer
You can check what places he has been to by checking the odometer
5. Pretend to be a good listener
He might by chance tell you something new which is probably related to the one he is been seeing. However, you should not ask questions as he could stop telling everything.
6. Check his emails
Especially his deleted emails as he intends to delete all the emails right after he read them.
7. Check the history on his internet browser
You can track what websites he has recently visited. This way is a good clue as you might find out he has visited the websites of hotels or any vacation spots, meaning he is planning to go for vacation without you.