You are taking fear as a sign of shyness, which is a romantic view of what it really is. Fear results out of a subjective mismatch of your own perceived skills

You are taking fear as a sign of shyness, which is a romantic view of what it really is. Fear results out of a subjective mismatch of your own perceived skills vs. the task ahead. If in doubt (fear), you should probably spend more time and resources working on your skill set and finding out how (and if) you can be up to the task. While "Just go for it" will certainly do if you know the guy personally and you're convinced that all he need is encouragement, generally stated (like in this thread) it is bad advice lacking both facts and perspective.