If you just got her, then trying to get her to glide when it isn't something she's had an opportunity to do yet, may actually be scaring her. Take things slowly, build up her trust in you which will in turn create that wonderful bond
we share with our gliders.
Once she is more comfortable with you and her new surroundings, then start by placing her on something just a bit higher than your hand. Hold your hand out to her so she can stretch and reach you, encouraging her to walk onto your hand. Reward her with a treat.
Very gradually, start pulling your hand an inch or so further from her to encourage her to hop to you, then jump to you, then eventually glide to you.
Just remember, than being in captivity, believe it or not, not all
gliders will glide. Also, in order for them to truly glide rather than jump, they need to be higher than the target they are jumping too. So when she's ready, maybe put her on a shower curtain rod, curtain rod, or door jamb. Just don't go too fast for her. If anything you are doing makes her feel uneasy, then slow down and move closer to her.