Hi and welcome to BeoWorld
The right bud is the master and a short tap on the B&O logo should switch this on. You will see a white light. Switch on Bluetooth on the device you want to connect to. To put the E8 in pairing mode, hold the B&O logo on both buds at the same time until you see the white light change to a flashing blue light. Hold both buds close to your device, ideally away from any other wireless devices such as laptops and routers which may block the signal.
Once they are paired directly to your device you can open the Bang & Olufsen app and "add" them to the app. From here you have access to additional features plus the app will tell you if the E8's need the software updating.
This process is the same for E8 and E8 2.0.
If you run in to difficulty placing both buds back in the case performs a "soft reset". To complete a full factory reset and start again hold both buds for 8 seconds. You will see the light turn red and no they are back to factory status.
I guess this highlights the problem Bang & Olufsen stores. If you buy from a main dealer you should get a complete demonstration and an offer of assistance setting up the product. Buy from other channels or the internet and the after sales support may not be all you need. This in turn can reflect badly on the brand.
Opman