I choose those bounties who believe that they can achieve success, for this, i read Whitepaper and join Telegram.

I have several criteria for selecting bounty companies - this is a team (it should have more than 5 people, it is unlikely to lessen the company), it should not last more than 3 months (it seems to me not to hold the bounty for half a year) and 100% profit if  there is already a working project, not just white paper.

The bounty is generally linked to the ICO project itself, if the project seems promising and having potential its bounty would be profitable too. If the project is worthless stay away from its bounty as well. Check the project's whitepaper, team, concept, roadmap..this factors could showing you if the project is promising or not.

I'm using Bountihive. They do many things for you, almost all logistic works. All you need to do is tweeting and sharing. Save a lot of time.

I would choose a bounty that gives you a lot of free coins, and requires mere registration and spreading the news.

I strongly recommend marinecoin. Marinecoin is a friendly environment friendly AI IoT Payment Network, with a tremendous potential to be unlocked. It started in 2013 -it is not a token, it is coin already.

Now the projects is being re-launched by volunteers to maintain the fastest and most reliable blockchain supported. The good news is that there is a ico free 450,000 coin MTC for those who participate at their website http://marienco.in (and give a hand spreading the news). The wallet works well, it as already available, and it is super fast to send MTCs from the exchange to the wallet.

If you want choose bounty that really can make your profit in future -  you need watch with attentive what idea it is, try to understand how it will help peoples who may invest in this, check what bounty-manager takes this bounty, is he successful, or not?

If you want to choose a bounty, there are few things you should consider.
1 how good the project is. You shouldn't do bounty 4 any random project that will dump
2 the size of the bounty pool matters also.
3 how crowded the spreadsheet is also matters

Need to check its background if it suits you and you want to be a part of this campaign, join. Just need to read in advance in any campaign for generosity and choose the one that will help you make money. I'm just giving you advice to read and read so you understand everything.

Communicate with other people who involve with the ICO can be useful to know that it is legit and worth of taking risk to invest aside from researching about the background of the project development as well as the team that develops the project. The roadmap can be helpful to track that the project is really exist. Finding good project to join with is hard but be a good analyzer for a good project also about the distribution of the bounty if it is really supported.