haiz....... i really dunno what should i do next..........

i have known of this girl through my workplace for almost 4 weeks and initially i have no special feelings towards her but when the special feelings came i told myself not to have a special feelings towards her but my mind betrayed myself in the end.......
initially this girl behaves normal towards me but dunno why recently she seems to be 'avoiding' me and was rather 'uneasy' when with me although i didn't disturb her, showing any 'significant' sighs that i hv special feelings towards her, telling anyone that i likes her etc. however she still appears friendly when she saw me........ i really don't know what was she thinking.....

to be honest i was yet to start wooing her n she is just a normal friend to me at the moment.......

should i try and win her heart or giving up? pls advise
