many ppl don't give their real name; i can't understand why, i can't see any harm in knowing each others name.
of course don't give personal information. but ur name isn't that personal. so ....
1- be a good lier and remember ur lie :D
2-just say i can't
3-say ur real name .... there won't be a harm (trust me no one will recognize u)
don't lie, don't lie, don't lie