This is brilliant - no matter what your sexuality, safe sex is always important. This guy is both informative and funny. You’ve probably learnt the glove-thumb trick before, but it’s great to see it demonstrated.
Also, a couple other things that I don’t think were mentioned - I’d recommend getting AIDS/HIV tests every six months or so (depending if it cost anything in your country). Even if you and your partners don’t do penetration or anything, it’s better to be safe than sorry. Even though STD/HIV rates for trans men are usually very low, chances are your boyfriends/sexual partners have slept with cis men before, whose HIV rates are above average.
The glove-thumb condom works well if you have a significant amount of clit growth, but if you don’t, open condoms and dental dams are great.
Disclosure is always important, and never start any sexual activity with a guy that doesn’t know you’re trans.
The biggest thing about safe sex, and this goes for anyone, trans or cis, whatever your sexuality, is previous discussion about what you like in bed and what you want in bed. I can’t stress this enough, and I really think it should be a part of standard sex education. Chat to your partner with your clothes on about what you like, what you don’t like, etc. And remember that he may not have ever had sex with a trans guy, or someone with a vulva before, so there may be things he’s uncomfortable with.
“Just because you’re not bloody, doesn’t mean you can’t make a lil buddy.” - Important if you have penis-in-vagina sex with cis guys.