Where can I buy?
You can buy Handshake coins on Namebase with Bitcoin, or USD if you verify your identity. Other exchanges can be found here. As of 4 May, 2021 that list includes:
How do I stake?
Handshake is not an ERC20 token on Ethereum and is not generally considered a "DeFi" asset.
You can earn money by selling subdomains within your TLDs by visiting https://www.namebase.io/registry and entering your name. There is a one-time 100 HNS staking fee, though, on top of the other per-sale fees. This is not a decentralized service, it is a custodial service provided by Namebase. Any second-level domains purchased from a staked TLD are not ERC20 or any other kind of token.
You also have the choice of staking your names in a decentralized manner, with the possibility of doing so in a completely trustless manner. Check out Badass Domains for more info on that.
What wallet is there?
Currently there are two fully featured wallets, Bob Wallet (https://bobwallet.io) and Namebase. Bob Wallet is non-custodial software which can be used trustlessly, whereas Namebase is a custodial online wallet. You can not buy coins from Bob Wallet.
What's with the @hns twitter?
The @HNS Twitter handle is a community-run account and periodically tweets/RTs relevant news, resources, and mentions of Handshake.
Is there a roadmap?
No. There is no central HNS foundation, no marketing budget and no central development effort. Handshake is being built by a diverse group of contributors with their own personal road maps and funding.
When Coinbase/Binance/Any other major exchange?
Since there's no central HNS foundation nor central development team, the communication with those exchanges lies on the individual members of the community. You, as a Handshake Director, can also help contacting those exchanges and promoting HNS. For technical questions on this topic, check the Dev Chat on Telegram.
Who should I talk to about listing fees or promotional services?
See above, there is no central foundation or marketing budget. There are a few decentralized fundraising efforts but they are focused on development and community building:
HNS Fund: https://hnsfund.titansofdata.org/
Handshake Institute: https://handy.wiki/wiki/Handshake_Institute
dWeb Foundation: https://www.decentralizedinter.net/
Can I use my current browser to visit Handshake websites?
Yes you can. What you need to visit Handshake domains is a Handshake resolver. There is a list of public HNS resolvers here: https://dns.live/start_resolver.html
You can also run your own resolver on a Raspberry Pi on your local network: https://gist.github.com/pinheadmz/a3e5ded7a4f0413e948a6a257c375891
Note that while a resolver is the only component needed to browse HNS domains, security is a separate issue. At this time since no major browsers support DANE verification, an additional tool is necessary like: https://github.com/buffrr/letsdane