To be honest, I think that a City Segway Tour is definitely, definitely the best way for any tourist to see the city.  Not only will you get to see everything up close and personal, but I think that you will absolutely fall head over heels in love with everything about Paris because you get to see if up close and personal. 

There are a ton of different segway tours available and you can get them guided or not guided, that is absolutely your choice, however, I recommend getting them toured.  Most of the time, the tour company will provide you with an English speaking tour guide, so you will be able to understand everything that is happening and can gain all of the knowledge!

Segways are certainly a life experience and one that you should absolutely go for.  They are fun; totally cool looking and you will not get tired at all from walking because they have a motor on them!  So make a segway tour part of your next trip!