I haven't really been involved with trading crypto, but I do look at the charts and trends for work. Based on trends, it seems to me that purchasing once a week and monitoring trends once or twice a day makes the most sense. When you notice a crypto that you own climbing significantly, that's when you should be monitoring the graphs constantly, so as to determine the best time to sell (i.e. as soon as its value starts declining). For the most part, though, from what I've seen, it usually takes a couple of weeks before a new token really starts picking up. Personally, if I were involved with this, I would go for bounties. A couple of hours of social media for a number of ICOs, with minimal risk, because the disappointing tokens will be balanced by the stronger ones, and either way you won't make a loss.