Tel is happy to be undergoing his first full preseason as a Spurs player.
On fellow attacker Son, Tel said: "I'm talking all the time with Sonny. He has more experience than me. I just want to learn and make sure that I become better every day. He helps me every day.
"Sonny is a legend. Everybody knows him. I’m very happy to work with him."
Spurs made Tel's loan from Bayern Munich into a permanent transfer this summer.
The Frenchman added, "I’m very happy about it. It is a big club. It’s time to write this story at a club like this. I’m very happy to be here and try to have more success with the club.
"It was a project (I had in mind when I first joined). I just had six months here and my time was great. Those first six months with Tottenham helped me on and off the pitch. I appreciated my time so that’s why I wanted to stay and I’m very happy."