Don't date through channels that have to do with your job...you'll develop a reputation. The talk around the water cooler will be about, guess what, and when some guy is scratching himself in the bathroom, one of your past dates will say...I know who you can date to relieve that itch.
Don't let your friends set you up, make your own dates. Now if your friends want to introduce you, let them, but use your own judgement from there. Your friends may think because you're gay, all they need to look for is a man.
Match.com may as well be Ashly Madison.com....it's supposed to be a classy social/dating site? No such thing; stick to the gay social/dating sites, just be clear you want dating. There are guys on there who desire that too, crazy but true. Up side is bi/married/partnered seem to be uncomfortably truthful about their married status on strictly gay dating sites.
And get the phone out of your face, take off your glasses; you look shady like what you attract. Be as open as what you want to attract. Be what you want to attract.