frenchsounds explains carefully and clearly in French how to pronounce particular French sounds. The phonetic ø represents the sound in ceux, peu, yeux, bœuf and so on. It can be a hard sound for some people to master. Not this way! You can hear it. You can see how the mouth is shaped and you can practise like a French person! Felipe P speaks very clearly and well so I do not think you will have trouble getting the sound right.