Will people be able to tell that I’m wearing extensions?

Provided you choose a style and colour that matches your own hair, the extensions will look totally natural and no one need ever know except you and perhaps that special someone who is allowed to run their hands through your hair. On the other hand, if you’re going for an obviously fun, funky look for a party or for just to enjoy a different style, then of course people will be able to tell – but only because you want them to.