First of all you need to be knowledgeable yourself about bitcoin before you invest in ICO's. Make sure that the ICO's you invested are legit.
If he wants to invest in ICO then he better stick knowing more about ICO. Knowing more with bitcoin is easy since the forum is mainly focused about bitcoin, he search things that he want to about it.
be careful because of scamming
Too many ICOs are just decoy for the real intent of the developers of scamming investors so watch out.
I guess that this year most of the ICO's will struggle on their sales.