Does She like me or just as a friend?

Well I have know this girl for around 3-4 months. We talk fairly regularly. We both start conversations. We met at work and have met up once outside of work with our friends. She always makes me laugh and their are never any awkward silences. But the two times I asked her if she wanted to hang out outside of work she said she cant because she is busy with exams and stuff so I just brushed it off. I feel like I'm wasting my time as I cant tell the signals if she likes me just as a friend or more. Someone at work told me they asked her would she go on a date with me If I asked her. She told him Yes which he told me and this guy doesn't lie and he wasn't joking. What do you all think?
Asked May 20, 2014

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