My tip: Do not invest in ICOs. ICOs are not as much profitable these days compared to last year. If I were interested in a certain ICO(though extremely unlikely), I'd probably buy it after the distribution instead, as prices are sometimes lower after the coins/tokens are accepted on exchanges.
Absolutely correct advice, although you may sound like this suggestion is not the same, but the fact is, this year's ICO has too many scams, even those icos that are not scam can not let you get a high return, so from a risk perspective, don't invest in any ICO is the best advice.