I'm a student, so my experiences are classroom/lab related.
I think actually, it is good to start subtlely, with fingers/hands. When exchanging items from her hands to yours, touch her hand or finger tips...ie, when handling money, writing utensils, etc.
Try getting in their personal space. I mean, stand close to her when talking or interacting, and possibly a bit closer than normal. I think doing this, you can sense if she is comfortable with your close proximity, and if she is, and also gets in your personal space, then it should be a go-ahead to proceed with more kino...such as, lightly touching her upper arm, or etc.
I personally always start small, with finger tips, then to getting in their personal space, and then to hands, then light touches on arms...
The personal space thing may be the best thing to try for you though. Some ideas I'd suggest are...if for example she's standing beside you, reach for something around her, so as to be almost whispering distance. Side to side is pretty good for this, then proceed to face to face really close.
...I think the key is reciprocation. If she is comfortable or is showing interest, she will reciprocate with light touches as well. No need to get too intimate in the classroom (or workplace for you).
that's just imo. and, I think most guys here would not recommend "sh!tting where you work" so to speak, or however the phrase goes ...they suggest you not date women you work with. I personally don't know about work, because I work from home, parttime, so no co-workers and only clients. But, in the classroom/lab when I do this, I usually play it safe a little, starting small like I said, because like you...if you are too bold early on, then you have to deal with the "awkwardness" that you made a move and got rejected, and see her again literally everyday. so be patient with it, and meet other girls elsewhere while you're at this.
cool name btw. i sense that you speak another language besides english.